commit 6be8201511f2c43f4f886bc37b5c6aac757f90b9
Author: Urban <urban@urmo.se>
Date:   Thu Oct 9 10:55:52 2025 +0200

    first commit

diff --git a/._wunf_upd_prefix.sh b/._wunf_upd_prefix.sh
new file mode 100755
index 0000000..eea6093
Binary files /dev/null and b/._wunf_upd_prefix.sh differ
diff --git a/checkmp4.sh b/checkmp4.sh
new file mode 100755
index 0000000..9a361e9
--- /dev/null
+++ b/checkmp4.sh
@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+#
+# checkmp4.sh <directory>
+#
+# Verifies all .mp4 files in the given directory ie checks if they are broken or not.
+# Prints "OK" or "Not OK" for each file.
+# Exit code is 0 if all files are OK, 1 if any are broken.
+
+dir="$1"
+
+if [ -z "$dir" ]; then
+  echo "Usage: $0 <directory>"
+  exit 2
+fi
+
+if [ ! -d "$dir" ]; then
+  echo "Not a directory: $dir"
+  exit 2
+fi
+
+bad=0
+
+# loop through mp4 files (non-recursive)
+# use `find "$dir" -type f -iname "*.mp4"` if you want recursive
+shopt -s nullglob
+for file in "$dir"/*.mp4 "$dir"/*.MP4; do
+  [ -e "$file" ] || continue
+
+  # --- Test 1: metadata sanity check ---
+  ffprobe -v error -select_streams v:0 -show_entries stream=width,height,duration \
+    -of csv=p=0 "$file" > /dev/null 2>&1
+  probe_status=$?
+
+  # --- Test 2: deep read/decode ---
+  ffmpeg -v error -xerror -i "$file" -f null - -nostats > /dev/null 2>&1
+  decode_status=$?
+
+  if [ $probe_status -eq 0 ] && [ $decode_status -eq 0 ]; then
+    echo "OK     $file"
+  else
+    echo "Not OK $file"
+    bad=1
+  fi
+done
+shopt -u nullglob
+
+exit $bad
diff --git a/clean_nfo.sh b/clean_nfo.sh
new file mode 100755
index 0000000..d4de97a
--- /dev/null
+++ b/clean_nfo.sh
@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+DRYRUN=false
+DIR="."
+
+# Argumenthantering
+for arg in "$@"; do
+    case "$arg" in
+        --dry-run) DRYRUN=true ;;
+        *) DIR="$arg" ;;
+    esac
+done
+
+# Kontroll att katalogen finns
+if [ ! -d "$DIR" ]; then
+    echo "Fel: katalogen '$DIR' finns inte"
+    exit 1
+fi
+
+echo "Söker efter .nfo-filer i: $DIR"
+$DRYRUN && echo ">>> DRY-RUN: inga filer tas bort <<<"
+
+# Gå igenom alla .nfo-filer
+find "$DIR" -type f -iname '*.nfo' -print0 |
+while IFS= read -r -d '' nfo; do
+    base="${nfo%.*}"
+
+    # Matcha motsvarande .mp4 (case-insensitive)
+    shopt -s nullglob nocaseglob
+    mp4s=( "$base".mp4 )
+    shopt -u nocaseglob
+
+    if (( ${#mp4s[@]} == 0 )); then
+        if $DRYRUN; then
+            echo "[dry-run] would delete: $nfo"
+        else
+            echo "Deleting: $nfo"
+            rm -v -- "$nfo"
+        fi
+    fi
+done
diff --git a/compare_advanced.sh b/compare_advanced.sh
new file mode 100755
index 0000000..40bb654
--- /dev/null
+++ b/compare_advanced.sh
@@ -0,0 +1,127 @@
+#!/usr/bin/env bash
+# compare_advanced.sh file1.mp4 file2.mp4
+set -euo pipefail
+
+f1="${1:-}"; f2="${2:-}"
+if [[ -z "$f1" || -z "$f2" ]]; then
+  echo "Usage: $0 <file1> <file2>" >&2
+  exit 2
+fi
+for f in "$f1" "$f2"; do
+  [[ -f "$f" ]] || { echo "Not found: $f" >&2; exit 2; }
+done
+
+have_signature_filter() {
+  ffmpeg -hide_banner -filters 2>/dev/null | grep -qE ' V[.*] signature '
+}
+
+# Pretty print quick summary (reuse from simple approach)
+summary() {
+  local f="$1"
+  local size dur v w h fps
+  size=$(stat -c%s "$f" 2>/dev/null || stat -f%z "$f")
+  dur=$(ffprobe -v error -show_entries format=duration -of default=nw=1:nk=1 "$f" || echo "")
+  v=$(ffprobe -v error -select_streams v:0 -show_entries stream=codec_name,width,height,r_frame_rate -of csv=p=0 "$f" | head -n1)
+  IFS=',' read -r vcodec w h rfr <<<"$v"
+  if [[ "$rfr" == */* ]]; then
+    fps=$(awk -v r="$rfr" 'BEGIN{split(r,a,"/"); if(a[2]==0) print 0; else printf "%.3f", a[1]/a[2]}')
+  else
+    fps=$(awk -v r="$rfr" 'BEGIN{printf "%.3f", r+0}')
+  fi
+  printf "  Size: %s bytes | Duration: %.3fs | Video: %s, %sx%s @ %.3f fps\n" "$size" "${dur:-0}" "$vcodec" "$w" "$h" "$fps"
+}
+
+if have_signature_filter; then
+  # Use ffmpeg's signature filter (robust against re-encode/resize)
+  tmpdir=$(mktemp -d)
+  trap 'rm -rf "$tmpdir"' EXIT
+
+  sig1="$tmpdir/1.sig"
+  sig2="$tmpdir/2.sig"
+  log="$tmpdir/compare.log"
+
+  echo "Computing video fingerprints (signature filter)..."
+  ffmpeg -v error -i "$f1" -vf "signature=format=xml:filename=$sig1" -f null - </dev/null
+  ffmpeg -v error -i "$f2" -vf "signature=format=xml:filename=$sig2" -f null - </dev/null
+
+  echo "Comparing fingerprints..."
+  # The signature filter can compare two signature files. Different FFmpeg builds print slightly different lines.
+  # We run a compare pass and parse a similarity metric from stderr.
+  # Try two plausible invocations; accept the first that succeeds.
+  if ffmpeg -v info -i "$sig1" -i "$sig2" -filter_complex "signature=compare=1" -f null - 2>"$log"; then
+    :
+  elif ffmpeg -v info -i "$sig2" -i "$sig1" -filter_complex "signature=compare=1" -f null - 2>>"$log"; then
+    :
+  fi
+
+  # Extract a rough similarity ratio (fallback to match count if ratio not printed)
+  ratio=$(grep -Eo 'similarity[^0-9]*([0-9]+(\.[0-9]+)?)' "$log" | tail -n1 | awk '{print $NF}' || true)
+  matches=$(grep -Eo 'matches[^0-9]*([0-9]+)' "$log" | awk '{print $NF}' | tail -n1 || true)
+
+  echo
+  echo "Quick summaries:"
+  echo "File 1: $f1"; summary "$f1"
+  echo "File 2: $f2"; summary "$f2"
+  echo
+
+  if [[ -n "${ratio:-}" ]]; then
+    echo "Similarity (signature): ${ratio}"
+    verdict=$(awk -v r="$ratio" 'BEGIN{ if(r+0 >= 0.80) print "Very likely same content"; else if(r+0 >= 0.60) print "Possibly same with edits"; else print "Likely different"; }')
+  elif [[ -n "${matches:-}" ]]; then
+    echo "Matching frames (signature): ${matches}"
+    verdict=$(awk -v m="$matches" 'BEGIN{ if(m+0 >= 50) print "Very likely same content"; else if(m+0 >= 10) print "Possibly same"; else print "Likely different"; }')
+  else
+    echo "Could not parse a similarity score from FFmpeg output; check log at: $log"
+    verdict="Inconclusive (check logs)"
+  fi
+
+  echo "Verdict: $verdict"
+  exit 0
+fi
+
+# ---- Fallback heuristic (no signature filter) ----
+# Sample 1 frame every 10s, normalize to small grayscale, hash each frame, compare overlap.
+
+echo "Signature filter not available; using frame-sampling heuristic..."
+tmpdir=$(mktemp -d)
+trap 'rm -rf "$tmpdir"' EXIT
+
+extract_hashes() {
+  local f="$1" base="$2"
+  # One frame every 10s, small grayscale to be robust to resizes/re-encodes
+  ffmpeg -v error -i "$f" -vf "fps=1/10,scale=160:90,format=gray" -f image2pipe -vcodec png - \
+    | sha256sum | awk '{print $1}' > "$tmpdir/${base}.hashes"
+  # Note: sha256sum on the whole pipe will hash the full stream; we want per-frame hashes.
+  # If system sha256sum collapses the stream to one hash, fall back to numbered files:
+  if [[ ! -s "$tmpdir/${base}.hashes" || $(wc -l < "$tmpdir/${base}.hashes") -le 1 ]]; then
+    rm -f "$tmpdir/${base}"_*.png
+    ffmpeg -v error -i "$f" -vf "fps=1/10,scale=160:90,format=gray" "$tmpdir/${base}_%05d.png"
+    ( cd "$tmpdir" && for p in ${base}_*.png; do sha256sum "$p" | awk '{print $1}'; done ) > "$tmpdir/${base}.hashes"
+    rm -f "$tmpdir/${base}"_*.png
+  fi
+}
+
+extract_hashes "$f1" A
+extract_hashes "$f2" B
+
+A="$tmpdir/A.hashes"; B="$tmpdir/B.hashes"
+countA=$(wc -l < "$A"); countB=$(wc -l < "$B")
+common=$(comm -12 <(sort "$A") <(sort "$B") | wc -l)
+jaccard=$(awk -v c="$common" -v a="$countA" -v b="$countB" 'BEGIN{u=a+b-c; if(u==0) print 0; else printf "%.3f", c/u}')
+
+echo
+echo "Quick summaries:"
+echo "File 1: $f1"; summary "$f1"
+echo "File 2: $f2"; summary "$f2"
+echo
+echo "Frame-sampling similarity:"
+echo "  Frames hashed: file1=$countA, file2=$countB"
+echo "  Common hashes: $common"
+echo "  Jaccard index: $jaccard"
+
+verdict=$(awk -v j="$jaccard" 'BEGIN{
+  if(j+0 >= 0.80) print "Very likely same content";
+  else if(j+0 >= 0.50) print "Possibly same content (edits/recodes)";
+  else print "Likely different";
+}')
+echo "Verdict: $verdict"
diff --git a/compare_simple.sh b/compare_simple.sh
new file mode 100755
index 0000000..e009e8f
--- /dev/null
+++ b/compare_simple.sh
@@ -0,0 +1,87 @@
+#!/usr/bin/env bash
+# compare_simple.sh file1.mp4 file2.mp4
+set -euo pipefail
+
+f1="${1:-}"; f2="${2:-}"
+if [[ -z "$f1" || -z "$f2" ]]; then
+  echo "Usage: $0 <file1> <file2>" >&2
+  exit 2
+fi
+for f in "$f1" "$f2"; do
+  [[ -f "$f" ]] || { echo "Not found: $f" >&2; exit 2; }
+done
+
+probe() {
+  local f="$1"
+  # format props
+  local size dur br
+  size=$(stat -c%s "$f" 2>/dev/null || stat -f%z "$f")
+  dur=$(ffprobe -v error -show_entries format=duration -of default=nw=1:nk=1 "$f" || echo "")
+  br=$(ffprobe -v error -show_entries format=bit_rate -of default=nw=1:nk=1 "$f" || echo "")
+
+  # first video stream
+  local vcodec w h fps
+  vcodec=$(ffprobe -v error -select_streams v:0 -show_entries stream=codec_name -of default=nw=1:nk=1 "$f" || echo "")
+  w=$(ffprobe -v error -select_streams v:0 -show_entries stream=width -of default=nw=1:nk=1 "$f" || echo "")
+  h=$(ffprobe -v error -select_streams v:0 -show_entries stream=height -of default=nw=1:nk=1 "$f" || echo "")
+  # r_frame_rate like 24000/1001 → convert to float
+  local rfr
+  rfr=$(ffprobe -v error -select_streams v:0 -show_entries stream=r_frame_rate -of default=nw=1:nk=1 "$f" || echo "")
+  if [[ "$rfr" == */* ]]; then
+    fps=$(awk -v r="$rfr" 'BEGIN{split(r,a,"/"); if(a[2]==0) print 0; else printf "%.3f", a[1]/a[2]}')
+  else
+    fps=$(awk -v r="$rfr" 'BEGIN{printf "%.3f", r+0}')
+  fi
+
+  # audio summary (codec:channels@rate, semicolon-separated)
+  local ainfo
+  ainfo=$(ffprobe -v error -select_streams a -show_entries stream=codec_name,channels,sample_rate -of csv=p=0 "$f" \
+    | awk -F, '{printf "%s:%s@%s", $1, $2, $3; if (NR!=0) printf "\n"}' \
+    | paste -sd';' - || true)
+
+  echo "$size|$dur|$br|$vcodec|${w}x${h}|$fps|$ainfo"
+}
+
+read -r s1 d1 br1 vc1 res1 fps1 a1 <<<"$(probe "$f1" | tr '|' ' ')"
+read -r s2 d2 br2 vc2 res2 fps2 a2 <<<"$(probe "$f2" | tr '|' ' ')"
+
+# helpers
+absdiff() { awk -v a="$1" -v b="$2" 'BEGIN{d=a-b; if(d<0)d=-d; print d}'; }
+pctdiff() { awk -v a="$1" -v b="$2" 'BEGIN{if(a==0&&b==0){print 0;exit} m=(a+b)/2; if(m==0){print 100;exit} d=a-b; if(d<0)d=-d; printf "%.2f", (d/m)*100 }'; }
+
+dur_diff=$(absdiff "${d1:-0}" "${d2:-0}")
+fps_diff=$(absdiff "${fps1:-0}" "${fps2:-0}")
+size_pct=$(pctdiff "${s1:-0}" "${s2:-0}")
+
+printf "File 1: %s\n" "$f1"
+printf "  Size:        %s bytes\n  Duration:    %.3fs\n  Video:       %s, %s, %.3f fps\n" "$s1" "${d1:-0}" "${vc1:-?}" "${res1:-?}" "${fps1:-0}"
+printf "  Audio:       %s\n" "${a1:-none}"
+printf "\n"
+printf "File 2: %s\n" "$f2"
+printf "  Size:        %s bytes\n  Duration:    %.3fs\n  Video:       %s, %s, %.3f fps\n" "$s2" "${d2:-0}" "${vc2:-?}" "${res2:-?}" "${fps2:-0}"
+printf "  Audio:       %s\n" "${a2:-none}"
+printf "\n"
+
+echo "Differences:"
+printf "  Size delta:           %s%%\n" "$size_pct"
+printf "  Duration delta:       %.3fs\n" "$dur_diff"
+printf "  FPS delta:            %.3f\n" "$fps_diff"
+printf "  Resolution match:     %s\n" "$([[ "$res1" == "$res2" ]] && echo yes || echo no)"
+printf "  Video codec match:    %s\n" "$([[ "$vc1" == "$vc2" ]] && echo yes || echo no)"
+printf "  Audio tracks match:   %s\n" "$([[ "$a1" == "$a2" ]] && echo yes || echo no)"
+echo
+
+# verdict heuristics
+likely="Different"
+# allow small tolerance on duration/fps
+dur_ok=$(awk -v d="$dur_diff" 'BEGIN{print (d<=1.0)?"1":"0"}')
+fps_ok=$(awk -v d="$fps_diff" 'BEGIN{print (d<=0.5)?"1":"0"}')
+
+if [[ "$res1" == "$res2" && "$dur_ok" == "1" && "$fps_ok" == "1" ]]; then
+  likely="Likely same content (possibly different encode)"
+fi
+if [[ "$vc1" == "$vc2" && "$a1" == "$a2" && "$size_pct" == "0.00" ]]; then
+  likely="Identical encode/container"
+fi
+
+echo "Verdict: $likely"
diff --git a/compare_snapshot.sh b/compare_snapshot.sh
new file mode 100755
index 0000000..f234bbe
--- /dev/null
+++ b/compare_snapshot.sh
@@ -0,0 +1,122 @@
+#!/usr/bin/env bash
+# compare_snapshot.sh  (robust v2)
+# Compare two MP4s by grabbing a snapshot at a given time and measuring SSIM/PSNR.
+#
+# Usage:
+#   ./compare_snapshot.sh <file1.mp4> <file2.mp4> [time_seconds] [scale] [--verbose]
+# Examples:
+#   ./compare_snapshot.sh A.mp4 B.mp4
+#   ./compare_snapshot.sh A.mp4 B.mp4 12 320:-1 --verbose
+#
+# Exit codes: 0 = ran ok (doesn't imply "very close"), 2 = usage error, 3 = ffmpeg failure
+
+set -u  # keep -e/-o pipefail off to avoid silent exits from grep/awk mismatches
+
+f1="${1:-}"; f2="${2:-}"
+t="${3:-12}"
+scale="${4:-320:-1}"
+verbose=0
+[[ "${5:-}" == "--verbose" ]] && verbose=1
+
+if [[ -z "${f1}" || -z "${f2}" ]]; then
+  echo "Usage: $0 <file1.mp4> <file2.mp4> [time_seconds] [scale] [--verbose]" >&2
+  exit 2
+fi
+for f in "$f1" "$f2"; do
+  [[ -f "$f" ]] || { echo "Not found: $f" >&2; exit 2; }
+done
+
+tmpdir="$(mktemp -d)"
+trap 'rm -rf "$tmpdir"' EXIT
+
+shot1="$tmpdir/shot1.png"
+shot2="$tmpdir/shot2.png"
+log="$tmpdir/metrics.log"
+
+# Helper for verbose prints
+vprint() { [[ $verbose -eq 1 ]] && echo "[DBG]" "$@" >&2; }
+
+# 1) Extract frames (accurate seek: -ss after -i)
+# Use -y to avoid “file exists” issues, and format to a stable pixel format.
+cmd1=(ffmpeg -hide_banner -v error -y -i "$f1" -ss "$t" -frames:v 1 -vf "scale=$scale,format=yuv420p" "$shot1")
+cmd2=(ffmpeg -hide_banner -v error -y -i "$f2" -ss "$t" -frames:v 1 -vf "scale=$scale,format=yuv420p" "$shot2")
+vprint "${cmd1[@]}"
+"${cmd1[@]}" || { echo "Failed to extract snapshot from $f1 at ${t}s." >&2; exit 3; }
+vprint "${cmd2[@]}"
+"${cmd2[@]}" || { echo "Failed to extract snapshot from $f2 at ${t}s." >&2; exit 3; }
+
+# Sanity check: files exist and non-empty
+if [[ ! -s "$shot1" || ! -s "$shot2" ]]; then
+  echo "Snapshot extraction produced empty files. Try a different time or scale." >&2
+  [[ $verbose -eq 1 ]] && ls -l "$tmpdir" >&2
+  exit 3
+fi
+
+# 2) Compare with SSIM (+ PSNR). Different ffmpeg builds print slightly different lines.
+# We send stderr to $log and parse multiple possible formats.
+cmp_cmd=(ffmpeg -hide_banner -v info -i "$shot1" -i "$shot2" -lavfi "ssim;[0:v][1:v]psnr" -f null -)
+vprint "${cmp_cmd[@]}"
+"${cmp_cmd[@]}" > /dev/null 2> "$log" || true
+
+# Try to parse SSIM "All:" first, fallback to Y channel, then average/mean lines.
+ssim_all="$(grep -Eo 'All:[0-9]+(\.[0-9]+)?' "$log" | head -n1 | cut -d: -f2 || true)"
+[[ -z "$ssim_all" ]] && ssim_all="$(grep -Eo 'SSIM [^ ]* All:[0-9]+(\.[0-9]+)?' "$log" | awk -F'All:' '{print $2}' | head -n1 || true)"
+[[ -z "$ssim_all" ]] && ssim_all="$(grep -Eo 'SSIM Y:[0-9]+(\.[0-9]+)?' "$log" | head -n1 | cut -d: -f2 || true)"
+
+# Parse PSNR average if present (may appear as "average:xx.xx" or "avg:xx.xx").
+psnr_all="$(grep -Eo 'average:[0-9]+(\.[0-9]+)?' "$log" | head -n1 | cut -d: -f2 || true)"
+[[ -z "$psnr_all" ]] && psnr_all="$(grep -Eo 'avg:[0-9]+(\.[0-9]+)?' "$log" | head -n1 | cut -d: -f2 || true)"
+
+# 3) Print summaries of the source files (optional but handy)
+summarize() {
+  local f="$1"
+  local dur vinfo fps w h vcodec rfr
+  dur=$(ffprobe -v error -show_entries format=duration -of default=nw=1:nk=1 "$f" 2>/dev/null || echo "")
+  vinfo=$(ffprobe -v error -select_streams v:0 -show_entries stream=codec_name,width,height,r_frame_rate -of csv=p=0 "$f" 2>/dev/null | head -n1)
+  IFS=',' read -r vcodec w h rfr <<<"$vinfo"
+  if [[ "$rfr" == */* ]]; then
+    fps=$(awk -v r="$rfr" 'BEGIN{split(r,a,"/"); if(a[2]==0) print 0; else printf "%.3f", a[1]/a[2]}')
+  else
+    fps=$(awk -v r="$rfr" 'BEGIN{printf "%.3f", r+0}')
+  fi
+  printf "  Duration: %.3fs | Video: %s, %sx%s @ %s fps\n" "${dur:-0}" "${vcodec:-?}" "${w:-?}" "${h:-?}" "${fps:-?}"
+}
+
+echo "Snapshot comparison at t=${t}s (scaled to ${scale}):"
+echo "File 1: $f1"; summarize "$f1"
+echo "File 2: $f2"; summarize "$f2"
+echo
+
+# 4) Handle cases where parsing failed
+if [[ -z "$ssim_all" && -z "$psnr_all" ]]; then
+  echo "Could not parse SSIM/PSNR from ffmpeg output."
+  [[ $verbose -eq 1 ]] && { echo "--- ffmpeg log ---"; cat "$log"; echo "-------------------"; }
+  echo "Tips: try a different time (e.g. 5 or 30), or a different scale (e.g. 640:-1)."
+  exit 0
+fi
+
+# 5) Report metrics and give a verdict
+printf "Metrics:\n"
+[[ -n "$ssim_all" ]] && printf "  SSIM (All): %s   (1.00 = identical)\n" "$ssim_all"
+[[ -n "$psnr_all" ]] && printf "  PSNR avg:   %s dB\n" "$psnr_all"
+echo
+
+# Verdict from SSIM (fallback to PSNR if SSIM missing)
+verdict="Different"
+if [[ -n "$ssim_all" ]]; then
+  verdict=$(awk -v s="$ssim_all" 'BEGIN{
+    if (s+0 >= 0.97) print "Very close (near-identical)";
+    else if (s+0 >= 0.90) print "Close";
+    else print "Different";
+  }')
+elif [[ -n "$psnr_all" ]]; then
+  verdict=$(awk -v p="$psnr_all" 'BEGIN{
+    if (p+0 >= 40) print "Very close (near-identical)";
+    else if (p+0 >= 30) print "Close";
+    else print "Different";
+  }')
+fi
+echo "Verdict: $verdict"
+
+# Optional: show where log is if verbose
+[[ $verbose -eq 1 ]] && { echo "(Log at: $log)"; }
diff --git a/count_words.sh b/count_words.sh
new file mode 100755
index 0000000..cc5b9d6
--- /dev/null
+++ b/count_words.sh
@@ -0,0 +1,183 @@
+#!/usr/bin/env bash
+set -uo pipefail
+# count_words.sh — Räknar underscore-separerade ord i filnamn
+# Version: 1.3.0
+
+VERSION="1.3.0"
+
+# Usage:
+#   ./count_words.sh [katalog] [--to-file] [--ext "mp4,avi,mkv"] [--version]
+#
+# Exempel:
+#   ./count_words.sh .
+#   ./count_words.sh /path --to-file
+#   ./count_words.sh /path --ext "mp4,avi" --to-file
+#   ./count_words.sh --version
+
+DIR="."
+TO_FILE=false
+OUTFILE="reserved__words.txt"
+EXTS=("mp4")  # default
+
+print_help() {
+  cat <<EOF
+count_words.sh v$VERSION
+Räknar ord (underscore-separerade) i filnamn, case-insensitive.
+Ignorerar filändelser; filtrerar på angivna ändelser (default: mp4).
+Ignorerar prefix som [WUNF] eller [WUNF_001] i filnamn.
+
+Usage:
+  $0 [dir] [--to-file] [--ext "mp4,avi,mkv"] [--version]
+
+Flaggor:
+  --to-file          Skriv endast orden (kommaseparerat) till $OUTFILE (append utan dubbletter)
+  --ext "a,b,c"      Tillåtna filändelser (kommaseparerad lista), t.ex. "mp4,avi"
+  --version          Skriv ut version och avsluta
+  -h, --help         Visa denna hjälp
+EOF
+}
+
+# Om första argumentet är en katalog, använd den
+if [[ $# -gt 0 && -d "${1:-}" ]]; then
+  DIR="$1"
+  shift
+fi
+
+# Arg-parsning
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --to-file)
+      TO_FILE=true; shift ;;
+    --ext)
+      shift
+      IFS=',' read -r -a EXTS <<< "${1:-}"
+      shift || true
+      ;;
+    --version)
+      echo "$VERSION"
+      exit 0
+      ;;
+    -h|--help)
+      print_help; exit 0 ;;
+    *)
+      echo "Okänt argument: $1" >&2
+      print_help
+      exit 1
+      ;;
+  esac
+done
+
+# Bygg lookup för tillåtna ändelser (lowercase)
+declare -A ALLOWED_EXT=()
+for e in "${EXTS[@]}"; do
+  [[ -n "$e" ]] || continue
+  ALLOWED_EXT["${e,,}"]=1
+done
+
+declare -A counts=()
+
+shopt -s nullglob
+for f in "$DIR"/*; do
+  [[ -f "$f" ]] || continue
+  name=$(basename "$f")
+
+  # Filtrera på tillåtna ändelser
+  ext="${name##*.}"
+  if [[ "$name" == "$ext" ]]; then
+    continue  # ingen ändelse
+  fi
+  ext_lc="${ext,,}"
+  [[ ${ALLOWED_EXT[$ext_lc]+_} ]] || continue
+
+  # Ta bort ändelsen
+  base="${name%.*}"
+
+  # TA BORT WUNF-PREFIX: [WUNF] eller [WUNF_ddd] var som helst i namnet
+  # (behåll allt annat)
+base_noprefix=$(sed -E 's/\[WUNF(_[0-9]{1,3})?\]//g' <<< "$base")
+#  base_noprefix=$(sed -E 's/\[WUNF(_[0-9]{3})?\]//g' <<< "$base")
+
+  # Splitta på '_' och räkna (case-insensitive)
+  oldIFS=$IFS
+  IFS='_'
+  read -r -a parts <<< "$base_noprefix"
+  IFS=$oldIFS
+
+  for word in "${parts[@]}"; do
+    # Trimma whitespace
+    w="$word"
+    w="${w#"${w%%[![:space:]]*}"}"  # trim left
+    w="${w%"${w##*[![:space:]]}"}"  # trim right
+    [[ -n "$w" ]] || continue
+
+    # Normalisera till lowercase
+    w_lc="${w,,}"
+
+    # Initiera och öka
+    : "${counts[$w_lc]:=0}"
+    (( counts[$w_lc]++ ))
+  done
+done
+
+# Samla ord med förekomst > 2
+results=()
+for w in "${!counts[@]}"; do
+  if (( counts[$w] > 2 )); then
+    results+=("${counts[$w]} $w")
+  fi
+done
+
+# Ingen träff?
+if [[ ${#results[@]} -eq 0 ]]; then
+  if $TO_FILE; then
+    if [[ -f "$OUTFILE" ]]; then
+      echo "Inga nya ord (>2) hittades. Filen lämnades oförändrad. (v$VERSION)"
+    else
+      : > "$OUTFILE"
+      echo "Inga ord (>2) hittades. Tom fil skapad: $OUTFILE (v$VERSION)"
+    fi
+  else
+    echo "Inga ord förekom mer än två gånger. (v$VERSION)"
+  fi
+  exit 0
+fi
+
+# Sortera: primärt på antal (fallande), sekundärt på ord (stigande)
+sorted_lines=$(printf "%s\n" "${results[@]}" | sort -nrk1,1 -k2,2)
+
+if $TO_FILE; then
+  # Nya ord (lowercase redan), en per rad
+  new_words=$(printf "%s\n" "$sorted_lines" | awk '{print $2}')
+
+  # Läs befintliga ord från OUTFILE (om den finns) och bygg union utan dubbletter
+  declare -A uniq=()
+  if [[ -f "$OUTFILE" ]]; then
+    # Tolka både kommatecken och whitespace som separerare
+    while IFS= read -r tok; do
+      w="$tok"
+      # trim
+      w="${w#"${w%%[![:space:]]*}"}"
+      w="${w%"${w##*[![:space:]]}"}"
+      [[ -n "$w" ]] || continue
+      uniq["${w,,}"]=1
+    done < <(tr -s ',[:space:]' '\n' < "$OUTFILE")
+  fi
+
+  # Lägg till nya ord
+  while IFS= read -r nw; do
+    [[ -n "$nw" ]] || continue
+    uniq["$nw"]=1
+  done <<< "$new_words"
+
+  # Bygg kommaseparerad sträng (alfabetiskt för determinism)
+  all_words=$(printf "%s\n" "${!uniq[@]}" | sort -u | paste -sd, -)
+
+  # Skriv tillbaka hela unionen (utan dubbletter)
+  echo "$all_words" > "$OUTFILE"
+  echo "Resultat uppdaterat i $OUTFILE (v$VERSION)"
+else
+  echo "Ord som förekommit mer än två gånger (sorterat högst->lägst) — v$VERSION:"
+  while read -r count word; do
+    echo "$word ($count ggr)"
+  done <<< "$sorted_lines"
+fi
diff --git a/count_words.sh.save b/count_words.sh.save
new file mode 100755
index 0000000..a8ef521
--- /dev/null
+++ b/count_words.sh.save
@@ -0,0 +1,182 @@
+#!/usr/bin/env bash
+set -uo pipefail
+# count_words.sh — Räknar underscore-separerade ord i filnamn
+# Version: 1.3.0
+
+VERSION="1.3.1"
+
+# Usage:
+#   ./count_words.sh [katalog] [--to-file] [--ext "mp4,avi,mkv"] [--version]
+#
+# Exempel:
+#   ./count_words.sh .
+#   ./count_words.sh /path --to-file
+#   ./count_words.sh /path --ext "mp4,avi" --to-file
+#   ./count_words.sh --version
+
+DIR="."
+TO_FILE=false
+OUTFILE="reserved__words.txt"
+EXTS=("mp4")  # default
+
+print_help() {
+  cat <<EOF
+count_words.sh v$VERSION
+Räknar ord (underscore-separerade) i filnamn, case-insensitive.
+Ignorerar filändelser; filtrerar på angivna ändelser (default: mp4).
+Ignorerar prefix som [WUNF] eller [WUNF_001] i filnamn.
+
+Usage:
+  $0 [dir] [--to-file] [--ext "mp4,avi,mkv"] [--version]
+
+Flaggor:
+  --to-file          Skriv endast orden (kommaseparerat) till $OUTFILE (append utan dubbletter)
+  --ext "a,b,c"      Tillåtna filändelser (kommaseparerad lista), t.ex. "mp4,avi"
+  --version          Skriv ut version och avsluta
+  -h, --help         Visa denna hjälp
+EOF
+}
+
+# Om första argumentet är en katalog, använd den
+if [[ $# -gt 0 && -d "${1:-}" ]]; then
+  DIR="$1"
+  shift
+fi
+
+# Arg-parsning
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --to-file)
+      TO_FILE=true; shift ;;
+    --ext)
+      shift
+      IFS=',' read -r -a EXTS <<< "${1:-}"
+      shift || true
+      ;;
+    --version)
+      echo "$VERSION"
+      exit 0
+      ;;
+    -h|--help)
+      print_help; exit 0 ;;
+    *)
+      echo "Okänt argument: $1" >&2
+      print_help
+      exit 1
+      ;;
+  esac
+done
+
+# Bygg lookup för tillåtna ändelser (lowercase)
+declare -A ALLOWED_EXT=()
+for e in "${EXTS[@]}"; do
+  [[ -n "$e" ]] || continue
+  ALLOWED_EXT["${e,,}"]=1
+done
+
+declare -A counts=()
+
+shopt -s nullglob
+for f in "$DIR"/*; do
+  [[ -f "$f" ]] || continue
+  name=$(basename "$f")
+
+  # Filtrera på tillåtna ändelser
+  ext="${name##*.}"
+  if [[ "$name" == "$ext" ]]; then
+    continue  # ingen ändelse
+  fi
+  ext_lc="${ext,,}"
+  [[ ${ALLOWED_EXT[$ext_lc]+_} ]] || continue
+
+  # Ta bort ändelsen
+  base="${name%.*}"
+
+  # TA BORT WUNF-PREFIX: [WUNF] eller [WUNF_ddd] var som helst i namnet
+  # (behåll allt annat)
+  base_noprefix=$(sed -E 's/\[WUNF(_[0-9]{3})?\]//g' <<< "$base")
+
+  # Splitta på '_' och räkna (case-insensitive)
+  oldIFS=$IFS
+  IFS='_'
+  read -r -a parts <<< "$base_noprefix"
+  IFS=$oldIFS
+
+  for word in "${parts[@]}"; do
+    # Trimma whitespace
+    w="$word"
+    w="${w#"${w%%[![:space:]]*}"}"  # trim left
+    w="${w%"${w##*[![:space:]]}"}"  # trim right
+    [[ -n "$w" ]] || continue
+
+    # Normalisera till lowercase
+    w_lc="${w,,}"
+
+    # Initiera och öka
+    : "${counts[$w_lc]:=0}"
+    (( counts[$w_lc]++ ))
+  done
+done
+
+# Samla ord med förekomst > 2
+results=()
+for w in "${!counts[@]}"; do
+  if (( counts[$w] > 2 )); then
+    results+=("${counts[$w]} $w")
+  fi
+done
+
+# Ingen träff?
+if [[ ${#results[@]} -eq 0 ]]; then
+  if $TO_FILE; then
+    if [[ -f "$OUTFILE" ]]; then
+      echo "Inga nya ord (>2) hittades. Filen lämnades oförändrad. (v$VERSION)"
+    else
+      : > "$OUTFILE"
+      echo "Inga ord (>2) hittades. Tom fil skapad: $OUTFILE (v$VERSION)"
+    fi
+  else
+    echo "Inga ord förekom mer än två gånger. (v$VERSION)"
+  fi
+  exit 0
+fi
+
+# Sortera: primärt på antal (fallande), sekundärt på ord (stigande)
+sorted_lines=$(printf "%s\n" "${results[@]}" | sort -nrk1,1 -k2,2)
+
+if $TO_FILE; then
+  # Nya ord (lowercase redan), en per rad
+  new_words=$(printf "%s\n" "$sorted_lines" | awk '{print $2}')
+
+  # Läs befintliga ord från OUTFILE (om den finns) och bygg union utan dubbletter
+  declare -A uniq=()
+  if [[ -f "$OUTFILE" ]]; then
+    # Tolka både kommatecken och whitespace som separerare
+    while IFS= read -r tok; do
+      w="$tok"
+      # trim
+      w="${w#"${w%%[![:space:]]*}"}"
+      w="${w%"${w##*[![:space:]]}"}"
+      [[ -n "$w" ]] || continue
+      uniq["${w,,}"]=1
+    done < <(tr -s ',[:space:]' '\n' < "$OUTFILE")
+  fi
+
+  # Lägg till nya ord
+  while IFS= read -r nw; do
+    [[ -n "$nw" ]] || continue
+    uniq["$nw"]=1
+  done <<< "$new_words"
+
+  # Bygg kommaseparerad sträng (alfabetiskt för determinism)
+  all_words=$(printf "%s\n" "${!uniq[@]}" | sort -u | paste -sd, -)
+
+  # Skriv tillbaka hela unionen (utan dubbletter)
+  echo "$all_words" > "$OUTFILE"
+  echo "Resultat uppdaterat i $OUTFILE (v$VERSION)"
+else
+  echo "Ord som förekommit mer än två gånger (sorterat högst->lägst) — v$VERSION:"
+  while read -r count word; do
+    echo "$word ($count ggr)"
+  done <<< "$sorted_lines"
+fi
diff --git a/detect_wunf.sh b/detect_wunf.sh
new file mode 100755
index 0000000..2d42789
--- /dev/null
+++ b/detect_wunf.sh
@@ -0,0 +1,90 @@
+#!/usr/bin/env bash
+# detect_pink_intro_hsv.sh <file.mp4> [duration_s] [fps] [hue_min] [hue_max] [sat_min] [val_min] [min_ratio]
+#
+# Detect a magenta/pink intro by averaging frames to 1x1 and classifying in HSV.
+#
+# Defaults:
+#   duration_s = 1.0
+#   fps        = 6
+#   hue_min    = 285     # degrees, magenta band start
+#   hue_max    = 330     # degrees, magenta band end
+#   sat_min    = 0.35    # require some saturation
+#   val_min    = 0.35    # avoid very dark frames
+#   min_ratio  = 0.6     # % of sampled frames that must be pink-ish
+#
+# Exit codes: 0 detected, 1 not detected, 2 usage error
+
+set -euo pipefail
+
+file="${1:-}"
+duration="${2:-1.0}"
+sample_fps="${3:-6}"
+HMIN="${4:-285}"
+HMAX="${5:-330}"
+SMIN="${6:-0.35}"
+VMIN="${7:-0.35}"
+MIN_RATIO="${8:-0.6}"
+
+if [[ -z "$file" ]]; then
+  echo "Usage: $0 <file.mp4> [duration_s] [fps] [hue_min] [hue_max] [sat_min] [val_min] [min_ratio]" >&2
+  exit 2
+fi
+[[ -f "$file" ]] || { echo "File not found: $file" >&2; exit 2; }
+
+# Stream 1x1 RGB for sampled frames; each frame = 3 bytes. Parse with od+awk.
+summary="$(
+  LC_ALL=C ffmpeg -hide_banner -v error \
+    -i "$file" -t "$duration" \
+    -vf "fps=${sample_fps},scale=1:1:flags=area,format=rgb24" \
+    -f rawvideo - 2>/dev/null \
+  | od -An -tu1 -w3 \
+  | awk -v HMIN="$HMIN" -v HMAX="$HMAX" -v SMIN="$SMIN" -v VMIN="$VMIN" '
+      function max(a,b){return a>b?a:b}
+      function min(a,b){return a<b?a:b}
+      # Convert RGB(0..255) to HSV; return H in degrees [0,360), S,V in [0,1]
+      function rgb2hsv(R,G,B,   r,g,b,M,m,d,H,S,V) {
+        r=R/255.0; g=G/255.0; b=B/255.0;
+        M=r; if(g>M) M=g; if(b>M) M=b;
+        m=r; if(g<m) m=g; if(b<m) m=b;
+        d=M-m; V=M;
+        if (M==0) { S=0 } else { S=(d==0?0:d/M) }
+        if (d==0) { H=0 }
+        else if (M==r) { H = 60.0 * fmod(((g-b)/d), 6) }
+        else if (M==g) { H = 60.0 * (((b-r)/d) + 2) }
+        else           { H = 60.0 * (((r-g)/d) + 4) }
+        if (H < 0) H += 360.0
+        hsv[1]=H; hsv[2]=S; hsv[3]=V
+      }
+      function fmod(a,b){ return a - int(a/b)*b }
+      BEGIN{ total=0; pink=0; }
+      NF==3 {
+        R=$1; G=$2; B=$3;
+        total++;
+        rgb2hsv(R,G,B);
+        H=hsv[1]; S=hsv[2]; V=hsv[3];
+        # classify: hue in magenta band AND sufficiently saturated/bright
+        if (H>=HMIN && H<=HMAX && S>=SMIN && V>=VMIN) pink++;
+        # save last metrics to show a couple of examples (optional)
+        if (total<=10) printf "DBG frame%02d: RGB=(%3d,%3d,%3d) HSV=(%6.1f°, %4.2f, %4.2f)\n", total,R,G,B,H,S,V > "/dev/stderr"
+      }
+      END {
+        if (total==0) { printf "TOTAL=0 PINK=0 RATIO=0\n"; exit; }
+        printf "TOTAL=%d PINK=%d RATIO=%.3f\n", total, pink, pink/total;
+      }'
+)"
+
+if ! printf "%s" "$summary" | grep -q 'TOTAL='; then
+  echo "No frames parsed (clip too short or pipeline issue)."
+  exit 1
+fi
+
+eval "$summary"  # sets TOTAL,PINK,RATIO
+echo "File: $file"
+echo "Analyzed: first ${duration}s @ ${sample_fps} fps → frames: ${TOTAL}"
+echo "Pink-ish frames (hue in ${HMIN}-${HMAX}°, S>=${SMIN}, V>=${VMIN}): ${PINK}"
+echo "Ratio: ${RATIO} (threshold: ${MIN_RATIO})"
+
+awk -v r="$RATIO" -v thr="$MIN_RATIO" 'BEGIN{ exit !(r+0 >= thr+0) }' \
+  && { echo "DETECTED: Pink intro present"; exit 0; }
+echo "Not detected"; exit 1
+
diff --git a/mvi.sh b/mvi.sh
new file mode 100755
index 0000000..91cd597
--- /dev/null
+++ b/mvi.sh
@@ -0,0 +1,106 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+usage() {
+  cat <<'EOF'
+Användning:
+  mvi KÄLLA MÅL
+  mvi KÄLLA1 KÄLLA2 ... KATALOG
+
+Flyttar som 'mv', men om en målfil redan finns så läggs ett index in
+före filändelsen, t.ex. "fil.txt" -> "fil.1.txt", "fil.2.txt", ...
+
+Exempel:
+  mvi bild.jpg bilder/           # bilder/bild.jpg eller bilder/bild.1.jpg
+  mvi .env prod/                 # prod/.env eller prod/.env.1
+  mvi projekt/ arkiv/            # arkiv/projekt eller arkiv/projekt.1
+EOF
+}
+
+# Ta reda på om sista argumentet är en katalog (målet när flera källor)
+is_dir() {
+  local p=$1
+  [[ -d "$p" ]]
+}
+
+# Skapa ett indexerat fil-/katalognamn om target redan finns.
+# Regler:
+#  - index (".N") injiceras före sista filändelsen
+#  - för dolda filer utan ändelse (t.ex. ".env"): ".env.1"
+#  - för flera punkter (t.ex. "fil.tar.gz"): "fil.tar.1.gz"
+indexed_path() {
+  local target="$1"
+  local dir base name ext n candidate
+
+  dir=$(dirname -- "$target")
+  name=$(basename -- "$target")
+
+  # Dela upp name i bas + ev. ext (sista punkten räknas som extension-separator)
+  if [[ "$name" = .* && "$name" != *.* ]]; then
+    # Dold fil utan extension (".env")
+    base="$name"
+    ext=""
+  elif [[ "$name" = *.* ]]; then
+    base="${name%.*}"
+    ext=".${name##*.}"
+  else
+    base="$name"
+    ext=""
+  fi
+
+  n=1
+  while :; do
+    candidate="${dir}/${base}.${n}${ext}"
+    [[ ! -e "$candidate" ]] && { printf '%s\n' "$candidate"; return 0; }
+    n=$((n+1))
+  done
+}
+
+# Flytta en enskild källa till ett givet mål (fil eller katalog)
+move_one() {
+  local src="$1"
+  local dst="$2"
+  local target
+
+  if [[ -d "$dst" ]]; then
+    target="${dst%/}/$(basename -- "$src")"
+  else
+    target="$dst"
+  fi
+
+  if [[ -e "$target" ]]; then
+    target=$(indexed_path "$target")
+  fi
+
+  # Skapa målkatalog om den inte finns (som mv gör med -t dir om den finns)
+  mkdir -p -- "$(dirname -- "$target")"
+
+  mv -- "$src" "$target"
+}
+
+# --- Huvudprogram ---
+if [[ $# -lt 2 ]]; then
+  usage
+  exit 1
+fi
+
+# Sista arg är destination
+dest="${@: -1}"
+sources=("${@:1:$(($#-1))}")
+
+# Om flera källor: dest måste vara katalog
+if [[ ${#sources[@]} -gt 1 ]]; then
+  if ! is_dir "$dest"; then
+    echo "Fel: Flera källor kräver att destinationen är en katalog." >&2
+    exit 2
+  fi
+fi
+
+# Iterera över alla källor
+for src in "${sources[@]}"; do
+  if [[ ! -e "$src" ]]; then
+    echo "Varning: källan finns inte: $src" >&2
+    continue
+  fi
+  move_one "$src" "$dest"
+done
diff --git a/rename_and_filter.sh b/rename_and_filter.sh
new file mode 100755
index 0000000..be1d3e6
--- /dev/null
+++ b/rename_and_filter.sh
@@ -0,0 +1,266 @@
+#!/usr/bin/env bash
+# =============================================================================
+#  rename_and_filter.sh
+#
+#  Version: 1.3.1
+#  Last updated: 2025-10-04
+#
+#  Summary
+#  -------
+#  Given a directory, a comma-separated file of reserved words, and an optional
+#  file extension filter:
+#    1) Removes any filename tokens (separated by "_") that match reserved words
+#       (case-insensitive, exact token matches).
+#       - EXTRA: If a reserved word appears as the last token (e.g., "..._good"),
+#         it is removed even if it's only delimited on the left side.
+#    2) Replaces one or more spaces with a single underscore "_".
+#    3) Collapses multiple "_" into a single "_", and trims leading/trailing "_".
+#
+#  Notes:
+#  - No files are deleted; only renaming occurs.
+#  - Processes files only in the given directory (non-recursive).
+#  - Collision handling: if target name exists, suffix "_N" before the extension.
+#  - Reserved words match only against the basename tokens (extension excluded).
+#
+#  Extension filter:
+#  - Default: mp4
+#  - "*"    : all files
+#  - "jpg"  : only .jpg (with or without leading dot accepted, e.g., "jpg" or ".jpg")
+#
+#  Logging:
+#    RENAME: "old_name.ext" => "new_name.ext"
+#    NOCHANGE (dry-run): "file.ext" (nothing to do)
+#
+#  Usage
+#  -----
+#    ./rename_and_filter.sh [--dry-run] <directory> <reserved_words.csv> [extension]
+#
+#  Examples
+#  --------
+#    # Dry-run on mp4 files (default):
+#    ./rename_and_filter.sh --dry-run ./videos ./reserved_words.csv
+#
+#    # All files:
+#    ./rename_and_filter.sh ./media ./reserved_words.csv "*"
+#
+#    # Only jpg:
+#    ./rename_and_filter.sh ./pictures ./reserved_words.csv jpg
+#
+#  Exit codes
+#  ----------
+#    0  Success
+#    1  Invalid arguments / missing files
+#    2  Requires bash >= 4
+# =============================================================================
+
+set -euo pipefail
+
+# Requires bash 4 for associative arrays
+if [ "${BASH_VERSINFO:-0}" -lt 4 ]; then
+  echo "This script requires bash >= 4." >&2
+  exit 2
+fi
+
+DRY_RUN=0
+
+print_help() {
+  sed -n '2,160p' "$0" | sed 's/^# \{0,1\}//'
+}
+
+log() {
+  printf '[%s] %s\n' "$(date '+%Y-%m-%d %H:%M:%S')" "$*"
+}
+
+rename_file() {
+  local src="$1"
+  local dst="$2"
+
+  # Guard: identical path, nothing to do
+  if [[ "$src" == "$dst" ]]; then
+    if (( DRY_RUN )); then
+      log "NOCHANGE (dry-run): \"$(basename "$src")\" (nothing to do)"
+    fi
+    return 0
+  fi
+
+  local base ext candidate n
+  base="${dst##*/}"
+  ext=""
+  if [[ "$base" == *.* ]]; then
+    ext=".${base##*.}"
+    base="${base%.*}"
+  fi
+  candidate="$dst"
+  n=1
+  # Avoid collisions (unless it's the same file, already handled above)
+  while [[ -e "$candidate" && "$src" != "$candidate" ]]; do
+    candidate="$(dirname "$dst")/${base}_$n$ext"
+    ((n++))
+  done
+
+  if (( DRY_RUN )); then
+    log "RENAME: \"$(basename "$src")\" => \"$(basename "$candidate")\""
+  else
+    mv -v -- "$src" "$candidate" >/dev/null
+    log "RENAME: \"$(basename "$src")\" => \"$(basename "$candidate")\""
+  fi
+}
+
+# --- Argument parsing ---
+if [[ "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
+  print_help
+  exit 0
+fi
+
+if [[ "${1:-}" == "-n" || "${1:-}" == "--dry-run" ]]; then
+  DRY_RUN=1
+  shift
+fi
+
+if [[ $# -lt 2 || $# -gt 3 ]]; then
+  echo "Error: Provide <directory> <reserved_words.csv> [extension]. Use --help for info." >&2
+  exit 1
+fi
+
+DIR="$1"
+WORD_FILE="$2"
+EXT="${3:-mp4}"
+
+# Normalize EXT: strip leading dot if present
+if [[ "$EXT" == .* ]]; then
+  EXT="${EXT#.}"
+fi
+
+if [[ ! -d "$DIR" ]]; then
+  echo "Error: Directory does not exist: $DIR" >&2
+  exit 1
+fi
+if [[ ! -f "$WORD_FILE" ]]; then
+  echo "Error: Reserved words file does not exist: $WORD_FILE" >&2
+  exit 1
+fi
+
+# --- Load reserved words into an associative set ---
+declare -A RESERVED=()
+# Allow comma and newlines as separators
+# shellcheck disable=SC2002
+mapfile -t _tokens < <(cat "$WORD_FILE" | tr ',\r\n' '\n')
+for raw in "${_tokens[@]}"; do
+  # trim whitespace
+  w="${raw#"${raw%%[![:space:]]*}"}"   # ltrim
+  w="${w%"${w##*[![:space:]]}"}"       # rtrim
+  [[ -z "$w" ]] && continue
+  RESERVED["${w,,}"]=1
+done
+
+log "Processing directory: $DIR (dry-run=$DRY_RUN, extension=${EXT})"
+log "Reserved words loaded: ${#RESERVED[@]}"
+
+# --- Normalize (rules 2 & 3) ---
+normalize_name() {
+  local name="$1"
+  # Replace one-or-more spaces with single underscore
+  name="$(printf '%s' "$name" | sed -E 's/[[:space:]]+/_/g')"
+  # Collapse multiple underscores
+  name="$(printf '%s' "$name" | sed -E 's/_+/_/g')"
+  # Trim leading/trailing underscores from the basename (keep extension)
+  local base ext
+  base="$name"
+  ext=""
+  if [[ "$base" == *.* ]]; then
+    ext=".${base##*.}"
+    base="${base%.*}"
+  fi
+  base="${base##_}"
+  base="${base%%_}"
+  printf '%s%s' "$base" "$ext"
+}
+
+# --- Remove reserved tokens from basename (plus end-token rule) ---
+strip_reserved() {
+  local name="$1"
+  local base ext token lw
+  local -a parts new_parts=()
+
+  base="$(basename "$name")"
+  ext=""
+  if [[ "$base" == *.* ]]; then
+    ext=".${base##*.}"
+    base="${base%.*}"
+  fi
+
+  # Pre-normalize for tokenization
+  local norm_base
+  norm_base="$(printf '%s' "$base" | sed -E 's/[[:space:]]+/_/g' | sed -E 's/_+/_/g')"
+
+  IFS='_' read -r -a parts <<< "$norm_base"
+  for token in "${parts[@]}"; do
+    [[ -z "$token" ]] && continue
+    lw="${token,,}"
+    if [[ -n "${RESERVED[$lw]:-}" ]]; then
+      continue
+    fi
+    new_parts+=("$token")
+  done
+
+  local new_base
+  if (( ${#new_parts[@]} == 0 )); then
+    new_base=""
+  else
+    new_base="$(IFS=_; echo "${new_parts[*]}")"
+  fi
+
+  # Extra end-token rule (defensive): if last token is reserved, drop it
+  if [[ -n "$new_base" ]]; then
+    local last last_lc
+    last="${new_base##*_}"
+    last_lc="${last,,}"
+    if [[ -n "${RESERVED[$last_lc]:-}" ]]; then
+      if [[ "$new_base" == *_* ]]; then
+        new_base="${new_base%_*}"
+      else
+        new_base=""
+      fi
+    fi
+  fi
+
+  # Fallback if everything disappeared
+  if [[ -z "$new_base" ]]; then
+    new_base="untitled"
+  fi
+
+  printf '%s%s' "$new_base" "$ext"
+}
+
+# --- File pattern based on EXT ---
+shopt -s nullglob
+pattern="*"
+if [[ "$EXT" != "*" ]]; then
+  pattern="*.$EXT"
+fi
+
+# --- Main loop ---
+for path in "$DIR"/$pattern; do
+  [[ -f "$path" ]] || continue
+
+  orig_basename="$(basename "$path")"
+
+  # 1) remove reserved tokens from basename
+  stripped="$(strip_reserved "$orig_basename")"
+
+  # 2 & 3) normalize (spaces -> "_", collapse "_", trim)
+  new_name="$(normalize_name "$stripped")"
+
+  # NEW: If nothing changed, do not attempt to rename at all
+  if [[ "$new_name" == "$orig_basename" ]]; then
+    if (( DRY_RUN )); then
+      log "NOCHANGE (dry-run): \"${orig_basename}\" (nothing to do)"
+    fi
+    continue
+  fi
+
+  target="$(dirname "$path")/$new_name"
+  rename_file "$path" "$target"
+done
+
+log "Done."
diff --git a/rename_space.sh b/rename_space.sh
new file mode 100755
index 0000000..067de7f
--- /dev/null
+++ b/rename_space.sh
@@ -0,0 +1,40 @@
+#!/bin/bash
+
+# Standardvärden
+DIR="."
+DRY_RUN=false
+
+# Läs argument
+for arg in "$@"; do
+    case "$arg" in
+        --dry-run)
+            DRY_RUN=true
+            ;;
+        *)
+            DIR="$arg"
+            ;;
+    esac
+done
+
+# Gå igenom alla filer i katalogen rekursivt
+find "$DIR" -depth -type f | while read -r file; do
+    dir=$(dirname "$file")
+    base=$(basename "$file")
+
+    # Byt ut mellanslag mot underscore
+    newbase=$(echo "$base" | tr ' ' '_')
+
+    # Byt ut flera underscores mot en enda
+    newbase=$(echo "$newbase" | sed 's/_\+/_/g')
+
+    # Om namnet har ändrats
+    if [ "$base" != "$newbase" ]; then
+        newpath="$dir/$newbase"
+        if [ "$DRY_RUN" = true ]; then
+            echo "[Dry-run] $file -> $newpath"
+        else
+            echo "Renaming: $file -> $newpath"
+            mv -i "$file" "$newpath"
+        fi
+    fi
+done
diff --git a/run_wunf.sh b/run_wunf.sh
new file mode 100755
index 0000000..b62a4d9
--- /dev/null
+++ b/run_wunf.sh
@@ -0,0 +1,94 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Hitta scriptets egen katalog
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+# Standardvärden
+DIR="."  # <-- katalogen man står i
+PREFIX="[WUNF]_"
+CSV="wunf_scenes.csv"
+EXT="mp4"
+LOG_DIR="${HOME}/log"
+LOG_FILE="${LOG_DIR}/run_wunf.log"
+SCAN_SCRIPT="${SCRIPT_DIR}/scan_and_prefix_pink.sh"
+UPDATE_SCRIPT="${SCRIPT_DIR}/wunf_upd_prefix.sh"
+
+# Skapa loggmapp om den inte finns
+mkdir -p "$LOG_DIR"
+
+# Starta loggning: både stdout och stderr till loggfil + terminal
+exec > >(tee -a "$LOG_FILE") 2>&1
+
+echo "============================================================"
+echo " Körning startad: $(date)"
+echo " Script: $0"
+echo " Loggfil: $LOG_FILE"
+echo "============================================================"
+
+usage() {
+  cat <<EOF
+Usage: $(basename "$0") [options]
+
+Kör scan + prefix och uppdatera därefter prefix i CSV-listan.
+
+Options:
+  -d, --dir <path>        Katalog att skanna (default: .)
+  -p, --prefix <str>      Prefix att sätta (default: [WUNF]_)
+  -c, --csv <file>        CSV-fil att använda (default: wunf_scenes.csv)
+  -e, --ext <ext>         Filändelse att matcha (default: mp4)
+  -h, --help              Visa denna hjälp
+
+Exempel:
+  $(basename "$0") --dir . --prefix "[WUNF]_"
+EOF
+}
+
+# --- Parse args ---
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    -d|--dir)    DIR="${2:-}"; shift 2 ;;
+    -p|--prefix) PREFIX="${2:-}"; shift 2 ;;
+    -c|--csv)    CSV="${2:-}"; shift 2 ;;
+    -e|--ext)    EXT="${2:-}"; shift 2 ;;
+    -h|--help)   usage; exit 0 ;;
+    *) echo "Okänd flagga: $1"; usage; exit 1 ;;
+  esac
+done
+
+# --- Kontroller ---
+[[ -d "$DIR" ]] || { echo "Fel: katalogen finns ej: $DIR" >&2; exit 1; }
+[[ -x "$SCAN_SCRIPT" ]] || { echo "Fel: saknar körbart $SCAN_SCRIPT" >&2; exit 1; }
+[[ -x "$UPDATE_SCRIPT" ]] || { echo "Fel: saknar körbart $UPDATE_SCRIPT" >&2; exit 1; }
+
+# --- Cleanup-hantering ---
+LIST_FILE="$(mktemp -t wunf_filenames.XXXXXX.txt)"
+cleanup() {
+  rm -f "$LIST_FILE"
+  echo "Tillfällig fil raderad: $LIST_FILE"
+  echo "Körning avslutad: $(date)"
+  echo "============================================================"
+}
+trap cleanup EXIT INT TERM
+
+echo "==> Steg 1: Scannar och sätter prefix (${PREFIX}) i ${DIR}"
+"$SCAN_SCRIPT" "$DIR" --prefix "$PREFIX"
+
+echo "==> Steg 2: Skapar fil-lista för filer med prefix (${PREFIX}) och .${EXT}"
+escaped_prefix_for_glob="$(printf '%s' "${PREFIX}" | sed -e 's/\[/\\[/g' -e 's/]/\\]/g')"
+pattern="${escaped_prefix_for_glob}*.${EXT}"
+
+pushd "$DIR" > /dev/null
+# shellcheck disable=SC2086
+ls -1d --quoting-style=literal $pattern > "$LIST_FILE" 2>/dev/null || true
+popd > /dev/null
+
+if [[ ! -s "$LIST_FILE" ]]; then
+  echo "Inga filer matchade '${PREFIX}*.${EXT}' i ${DIR}." >&2
+  exit 2
+fi
+
+echo "==> Hittade $(wc -l < "$LIST_FILE" | tr -d ' ') filer. Kör uppdateringsscriptet…"
+"$UPDATE_SCRIPT" --list "$LIST_FILE" "$CSV"
+
+echo "==> Klart!"
diff --git a/sanitycheck.sh b/sanitycheck.sh
new file mode 100755
index 0000000..4c9afa8
--- /dev/null
+++ b/sanitycheck.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+#
+# sanitycheck.sh <file.mp4>
+#
+# Returns: "OK" if file looks good, "Not OK" otherwise.
+
+file="$1"
+
+if [ -z "$file" ]; then
+  echo "Usage: $0 <file.mp4>"
+  exit 2
+fi
+
+if [ ! -f "$file" ]; then
+  echo "Not OK (file not found)"
+  exit 1
+fi
+
+# --- Test 1: metadata sanity check ---
+ffprobe -v error -select_streams v:0 -show_entries stream=width,height,duration \
+  -of csv=p=0 "$file" > /dev/null 2>&1
+probe_status=$?
+
+# --- Test 2: deep read/decode ---
+ffmpeg -v error -xerror -i "$file" -f null - -nostats > /dev/null 2>&1
+decode_status=$?
+
+if [ $probe_status -eq 0 ] && [ $decode_status -eq 0 ]; then
+  echo "OK"
+  exit 0
+else
+  echo "Not OK"
+  exit 1
+fi
diff --git a/scan_and_prefix_pink.md b/scan_and_prefix_pink.md
new file mode 100644
index 0000000..9629e94
--- /dev/null
+++ b/scan_and_prefix_pink.md
@@ -0,0 +1,30 @@
+Examples
+
+Basic (non-recursive):
+
+chmod +x scan_and_prefix_pink.sh
+./scan_and_prefix_pink.sh /path/to/videos
+
+
+Recursive + dry-run + custom prefix:
+
+./scan_and_prefix_pink.sh /path/to/videos --recursive --dry-run --prefix INTRO_
+
+
+Stricter detection (wider window, brighter requirement, higher ratio):
+
+./scan_and_prefix_pink.sh /path/to/videos \
+  --duration 1.2 --fps 6 --hue-min 280 --hue-max 335 \
+  --sat-min 0.40 --val-min 0.45 --min-ratio 0.7
+
+Notes
+
+Collision-safe: if the target name exists, the script appends .1, .2, … to the new filename.
+
+Idempotent: already-prefixed files are skipped.
+
+Output: one line per file with a clear status:
+
+RENAMED, NOT_MATCH, SKIPPED, or ERROR (with a short reason).
+
+You can tweak the HSV thresholds if your intro varies (e.g., broader hue band 270–340 or lower sat-min for paler pink).
diff --git a/scan_and_prefix_pink.sh b/scan_and_prefix_pink.sh
new file mode 100755
index 0000000..8440673
--- /dev/null
+++ b/scan_and_prefix_pink.sh
@@ -0,0 +1,152 @@
+#!/usr/bin/env bash
+# scan_and_prefix_pink.sh
+#
+# Scan a directory for MP4 files, detect a pink/magenta intro,
+# and prefix matching files (unless already prefixed).
+#
+# Options:
+#   --dry-run, --recursive/-r, --prefix PREFIX, etc. (same as before)
+
+set -euo pipefail
+
+# ---- Defaults ----
+DRY_RUN=0
+RECURSIVE=0
+PREFIX="PINK_"
+DURATION="1.0"
+FPS="6"
+HUE_MIN="285"
+HUE_MAX="330"
+SAT_MIN="0.35"
+VAL_MIN="0.35"
+MIN_RATIO="0.6"
+
+# ---- Parse args ----
+if [[ $# -lt 1 ]]; then
+  echo "Usage: $0 <directory> [--dry-run] [--recursive|-r] [--prefix PREFIX] ..." >&2
+  exit 2
+fi
+
+DIR="$1"; shift || true
+[[ -d "$DIR" ]] || { echo "Not a directory: $DIR" >&2; exit 2; }
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --dry-run) DRY_RUN=1; shift ;;
+    --recursive|-r) RECURSIVE=1; shift ;;
+    --prefix) PREFIX="${2:-}"; shift 2 ;;
+    --duration) DURATION="${2:-}"; shift 2 ;;
+    --fps) FPS="${2:-}"; shift 2 ;;
+    --hue-min) HUE_MIN="${2:-}"; shift 2 ;;
+    --hue-max) HUE_MAX="${2:-}"; shift 2 ;;
+    --sat-min) SAT_MIN="${2:-}"; shift 2 ;;
+    --val-min) VAL_MIN="${2:-}"; shift 2 ;;
+    --min-ratio) MIN_RATIO="${2:-}"; shift 2 ;;
+    --help|-h)
+      grep -E '^# ' "$0" | sed 's/^# //'; exit 0 ;;
+    *) echo "Unknown option: $1" >&2; exit 2 ;;
+  esac
+done
+
+# ---- Helpers ----
+print_result() { # $1=status $2=file $3=detail
+  printf "%-10s %s%s\n" "$1" "$2" "${3:+  ($3)}"
+}
+
+safe_rename() { # $1=path $2=prefix
+  local path="$1" pre="$2"
+  local dir base target
+  dir=$(dirname -- "$path")
+  base=$(basename -- "$path")
+  target="${dir}/${pre}${base}"
+
+  # Avoid collisions
+  if [[ -e "$target" ]]; then
+    local n=1
+    while [[ -e "${target}.${n}" ]]; do n=$((n+1)); done
+    target="${target}.${n}"
+  fi
+
+  if [[ $DRY_RUN -eq 1 ]]; then
+    print_result "RENAMED" "$path" "dry-run → $(basename -- "$target")"
+  else
+    if mv -- "$path" "$target"; then
+      print_result "RENAMED" "$path" "→ $(basename -- "$target")"
+    else
+      print_result "ERROR" "$path" "rename failed"
+    fi
+  fi
+}
+
+detect_pink() { # $1=file -> echoes "total pink ratio"
+  local file="$1"
+  LC_ALL=C ffmpeg -hide_banner -v error \
+    -i "$file" -t "$DURATION" \
+    -vf "fps=${FPS},scale=1:1:flags=area,format=rgb24" \
+    -f rawvideo - 2>/dev/null \
+  | od -An -tu1 -w3 \
+  | awk -v HMIN="$HUE_MIN" -v HMAX="$HUE_MAX" -v SMIN="$SAT_MIN" -v VMIN="$VAL_MIN" '
+      function fmod(a,b){ return a - int(a/b)*b }
+      function rgb2hsv(R,G,B,   r,g,b,M,m,d,H,S,V) {
+        r=R/255.0; g=G/255.0; b=B/255.0;
+        M=r; if(g>M) M=g; if(b>M) M=b;
+        m=r; if(g<m) m=g; if(b<m) m=b;
+        d=M-m; V=M;
+        if (M==0) S=0; else S=(d==0?0:d/M);
+        if (d==0) H=0;
+        else if (M==r) H = 60.0 * fmod(((g-b)/d), 6);
+        else if (M==g) H = 60.0 * (((b-r)/d) + 2);
+        else           H = 60.0 * (((r-g)/d) + 4);
+        if (H < 0) H += 360.0;
+        hsv[1]=H; hsv[2]=S; hsv[3]=V;
+      }
+      BEGIN{ total=0; pink=0; }
+      NF==3 {
+        R=$1; G=$2; B=$3; total++;
+        rgb2hsv(R,G,B); H=hsv[1]; S=hsv[2]; V=hsv[3];
+        if (H>=HMIN && H<=HMAX && S>=SMIN && V>=VMIN) pink++;
+      }
+      END {
+        if (total==0) { print "0 0 0"; exit; }
+        printf "%d %d %.3f\n", total, pink, pink/total;
+      }'
+}
+
+is_mp4() { case "$1" in *.mp4|*.MP4) return 0;; *) return 1;; esac; }
+
+# ---- File list ----
+if [[ $RECURSIVE -eq 1 ]]; then
+  mapfile -t FILES < <(find "$DIR" -type f \( -iname '*.mp4' \))
+else
+  mapfile -t FILES < <(ls "$DIR"/*.mp4 "$DIR"/*.MP4 2>/dev/null || true)
+fi
+
+# ---- Process ----
+if [[ ${#FILES[@]} -eq 0 ]]; then
+  echo "No MP4 files found in: $DIR"
+  exit 0
+fi
+
+for f in "${FILES[@]}"; do
+  [[ -f "$f" ]] || { print_result "SKIPPED" "$f" "not a file"; continue; }
+  is_mp4 "$f" || { print_result "SKIPPED" "$f" "not mp4"; continue; }
+
+  base=$(basename -- "$f")
+  if [[ "$base" == "$PREFIX"* ]]; then
+    print_result "SKIPPED" "$f" "already prefixed"
+    continue
+  fi
+
+  read -r total pink ratio < <(detect_pink "$f")
+  if [[ "$total" -eq 0 ]]; then
+    print_result "ERROR" "$f" "no frames parsed"
+    continue
+  fi
+
+  awk -v r="$ratio" -v thr="$MIN_RATIO" 'BEGIN{exit !(r>=thr)}' && {
+    safe_rename "$f" "$PREFIX"
+    continue
+  }
+
+  print_result "NOT_MATCH" "$f" "ratio=${ratio} (<${MIN_RATIO})"
+done
diff --git a/scrapWUNFIdx.sh b/scrapWUNFIdx.sh
new file mode 100755
index 0000000..ddf52cc
--- /dev/null
+++ b/scrapWUNFIdx.sh
@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+OUTFILE="${1:-wunf_scenes.csv}"
+
+# Töm (eller skapa) utfilen
+: > "$OUTFILE"
+
+for page in $(seq 1 18); do
+  echo "Hämtar sida $page..." >&2
+  curl -sL "https://www.wakeupnfuck.com/scene?page=${page}" |
+  perl -0777 -ne '
+    # Läs hela sidan som en sträng (-0777) och matcha varje informationsblock
+    while (m{
+      <div\ class="informations">\s*
+      .*?<h3>\s*([^<]+)\s*</h3>\s*
+      .*?<p\ class="sub">\s*([^<]+)\s*</p>\s*
+      .*?<p\ class="timer">\s*([^<]+)\s*</p>
+    }gxis) {
+      my ($code, $name, $dur) = ($1, $2, $3);
+      for ($code, $name, $dur) { s/^\s+|\s+$//g }  # trim
+      # Skriv i önskat format: Namn;Kod;Tid
+      print "$name;$code;$dur\n";
+    }
+  ' >> "$OUTFILE"
+done
+
+echo "Klart. Skrev $(wc -l < "$OUTFILE") rader till $OUTFILE" >&2
diff --git a/thumbnail.sh b/thumbnail.sh
new file mode 100644
index 0000000..11336b1
--- /dev/null
+++ b/thumbnail.sh
@@ -0,0 +1 @@
+ffmpeg -i WoodManCastingX_17_08_25_Ninel_Mojado_XXX_1080p__hdporn__ghost__dailyvids__0dayporn__internallink__V.mp4 -ss 00:00:07.000 -frames:v 1 out.png
diff --git a/videocmp_select.sh b/videocmp_select.sh
new file mode 100755
index 0000000..65d70be
--- /dev/null
+++ b/videocmp_select.sh
@@ -0,0 +1,346 @@
+#!/usr/bin/env bash
+# videocmp_select.sh
+#
+# Modes:
+# 1) Pair mode: compare A and B
+#    ./videocmp_select.sh A.mp4 B.mp4 [options]
+#
+# 2) Directory scan mode: group by prefix before first "WoodmanCastingX" (case-insensitive)
+#    ./videocmp_select.sh --scan-dir [DIR] [--recursive] [options]
+#    (DIR defaults to "." if omitted)
+#
+# Pipeline:
+#   1) Validate files (ffprobe fields + ffmpeg deep decode)
+#   2) Confirm same movie via snapshot SSIM @ --snapshot-time (default 12s)
+#   3) Optional: run external compare impl (simple/advanced) for logging
+#   4) Pick preferred: prefer --prefer-height (default 720), then longer duration, then larger file
+#   5) Act on loser: --action print|move|delete (with --dry-run)
+#
+# Common options:
+#   --snapshot-time SEC        (default: 12)
+#   --snapshot-scale WxH       (default: 320:-1)
+#   --snapshot-ssim THRESH     (default: 0.97)
+#   --impl simple|advanced     (default: simple)   # logs only
+#   --impl-simple PATH         (default: ./compare_simple.sh)
+#   --impl-advanced PATH       (default: ./compare_advanced.sh)
+#   --impl-optional            (default) warn if impl missing
+#   --impl-required            error if chosen impl missing
+#   --prefer-height N          (default: 720)
+#   --duration-eps SEC         (default: 0.0)
+#   --action print|move|delete (default: print)
+#   --trash-dir PATH           (default: $HOME/.video_trash)
+#   --dry-run
+#   --verbose
+#
+# Directory-scan options:
+#   --scan-dir [DIR]           Enable directory mode (DIR optional; default ".")
+#   --recursive, -r            Recurse into subfolders
+#   --delimiter WORD           (default: WoodmanCastingX) case-insensitive
+#
+# Exit codes:
+#   0 success | 1 differ/broken | 2 usage | 3 missing dependency
+set -u
+
+# -------- defaults --------
+SNAP_T="12"
+SNAP_SCALE="320:-1"
+SNAP_SSIM="0.97"
+
+IMPL="simple"
+IMPL_SIMPLE="./compare_simple.sh"
+IMPL_ADV="./compare_advanced.sh"
+IMPL_REQUIRED=0
+
+PREF_HEIGHT=720
+DURATION_EPS=0.0
+
+ACTION="print"
+TRASH_DIR="${HOME}/.video_trash"
+DRY=0
+VERBOSE=0
+
+SCAN_DIR=""
+RECURSIVE=0
+DELIM="WoodmanCastingX"
+
+# -------- helpers --------
+need() { command -v "$1" >/dev/null 2>&1 || { echo "Missing dependency: $1" >&2; exit 3; }; }
+v() { [[ $VERBOSE -eq 1 ]] && echo "[LOG]" "$@" >&2; }
+die() { echo "[ERR]" "$@" >&2; exit 1; }
+
+need ffmpeg; need ffprobe; need awk; need grep; need stat; need sed; need tr; need find
+
+# -------- array-based option parser --------
+ARGS=("$@")
+REM_ARR=()
+i=0
+while (( i < ${#ARGS[@]} )); do
+  arg="${ARGS[i]}"
+  case "$arg" in
+    --snapshot-time)    SNAP_T="${ARGS[i+1]:-}"; i=$((i+2));;
+    --snapshot-scale)   SNAP_SCALE="${ARGS[i+1]:-}"; i=$((i+2));;
+    --snapshot-ssim)    SNAP_SSIM="${ARGS[i+1]:-}"; i=$((i+2));;
+    --impl)             IMPL="${ARGS[i+1]:-}"; i=$((i+2));;
+    --impl-simple)      IMPL_SIMPLE="${ARGS[i+1]:-}"; i=$((i+2));;
+    --impl-advanced)    IMPL_ADV="${ARGS[i+1]:-}"; i=$((i+2));;
+    --impl-optional)    IMPL_REQUIRED=0; i=$((i+1));;
+    --impl-required)    IMPL_REQUIRED=1; i=$((i+1));;
+    --prefer-height)    PREF_HEIGHT="${ARGS[i+1]:-}"; i=$((i+2));;
+    --duration-eps)     DURATION_EPS="${ARGS[i+1]:-}"; i=$((i+2));;
+    --action)           ACTION="${ARGS[i+1]:-}"; i=$((i+2));;
+    --trash-dir)        TRASH_DIR="${ARGS[i+1]:-}"; i=$((i+2));;
+    --dry-run)          DRY=1; i=$((i+1));;
+    --verbose)          VERBOSE=1; i=$((i+1));;
+    --scan-dir)
+      # optional arg: use next token unless it looks like another option
+      next="${ARGS[i+1]:-}"
+      if [[ -n "$next" && "$next" != --* ]]; then
+        SCAN_DIR="$next"; i=$((i+2))
+      else
+        SCAN_DIR="."; i=$((i+1))
+      fi
+      ;;
+    --recursive|-r)     RECURSIVE=1; i=$((i+1));;
+    --delimiter)        DELIM="${ARGS[i+1]:-}"; i=$((i+2));;
+    --help|-h)
+      grep -E '^# ' "$0" | sed 's/^# //'
+      exit 0 ;;
+    *)
+      # leave positional for pair mode
+      REM_ARR+=("$arg"); i=$((i+1));;
+  esac
+done
+
+v "[DBG] Options: SCAN_DIR='${SCAN_DIR:-}' RECURSIVE=$RECURSIVE DELIM='$DELIM' PREF_HEIGHT=$PREF_HEIGHT SNAP_T=$SNAP_T"
+
+# -------- core functions --------
+probe_meta() { # file -> "w h dur codec size"
+  local f="$1" size w h dur vcodec
+  size=$(stat -c%s "$f" 2>/dev/null || stat -f%z "$f")
+  w=$(ffprobe -v error -select_streams v:0 -show_entries stream=width  -of default=nw=1:nk=1 "$f" || echo 0)
+  h=$(ffprobe -v error -select_streams v:0 -show_entries stream=height -of default=nw=1:nk=1 "$f" || echo 0)
+  dur=$(ffprobe -v error -show_entries format=duration -of default=nw=1:nk=1 "$f" || echo 0)
+  vcodec=$(ffprobe -v error -select_streams v:0 -show_entries stream=codec_name -of default=nw=1:nk=1 "$f" || echo "?")
+  echo "$w $h $dur $vcodec $size"
+}
+
+check_ok() { # file -> 0 ok / 1 bad
+  local f="$1" w h dur
+  w=$(ffprobe -v error -select_streams v:0 -show_entries stream=width  -of default=nw=1:nk=1 "$f" 2>/dev/null || echo "")
+  h=$(ffprobe -v error -select_streams v:0 -show_entries stream=height -of default=nw=1:nk=1 "$f" 2>/dev/null || echo "")
+  dur=$(ffprobe -v error -show_entries format=duration -of default=nw=1:nk=1 "$f" 2>/dev/null || echo "")
+  if [[ -z "$w" || -z "$h" || "$w" = "N/A" || "$h" = "N/A" || "$w" -eq 0 || "$h" -eq 0 ]]; then
+    echo "BROKEN(ffprobe: no valid video stream): $f" >&2; return 1; fi
+  if [[ -n "$dur" && "$dur" != "N/A" ]]; then
+    awk -v d="$dur" 'BEGIN{exit !(d+0>0)}' || { echo "BROKEN(ffprobe: nonpositive duration): $f" >&2; return 1; }
+  fi
+  if ! ffmpeg -v error -xerror -i "$f" -f null - -nostats >/dev/null 2>&1; then
+    echo "BROKEN(ffmpeg decode): $f" >&2; return 1; fi
+  return 0
+}
+
+snapshot_compare_ssim() { # f1 f2 time scale -> "ssim" (empty if fail)
+  local f1="$1" f2="$2" t="$3" sc="$4"
+  local tmpd s1 s2 log ssim
+  tmpd="$(mktemp -d)"; s1="$tmpd/1.png"; s2="$tmpd/2.png"; log="$tmpd/cmp.log"
+  ffmpeg -hide_banner -v error -y -i "$f1" -ss "$t" -frames:v 1 -vf "scale=$sc,format=yuv420p" "$s1" || true
+  ffmpeg -hide_banner -v error -y -i "$f2" -ss "$t" -frames:v 1 -vf "scale=$sc,format=yuv420p" "$s2" || true
+  if [[ ! -s "$s1" || ! -s "$s2" ]]; then rm -rf "$tmpd"; echo ""; return 0; fi
+  ffmpeg -hide_banner -v info -i "$s1" -i "$s2" -lavfi "ssim" -f null - > /dev/null 2> "$log" || true
+  ssim="$(grep -Eo 'All:[0-9]+(\.[0-9]+)?' "$log" | head -n1 | cut -d: -f2)"
+  [[ -z "$ssim" ]] && ssim="$(grep -Eo 'SSIM [^ ]* All:[0-9]+(\.[0-9]+)?' "$log" | awk -F'All:' '{print $2}' | head -n1)"
+  [[ -z "$ssim" ]] && ssim="$(grep -Eo 'SSIM Y:[0-9]+(\.[0-9]+)?' "$log" | head -n1 | cut -d: -f2)"
+  rm -rf "$tmpd"; echo "$ssim"
+}
+
+run_impl() { # impl, A, B
+  local which="$1" f1="$2" f2="$3" path=""
+  [[ "$which" == "advanced" ]] && path="$IMPL_ADV" || path="$IMPL_SIMPLE"
+  if [[ ! -x "$path" ]]; then
+    if [[ $IMPL_REQUIRED -eq 1 ]]; then
+      die "Requested --impl=$which but script not found/executable at $path"
+    else
+      echo "[impl:$which] not found ($path) — skipping" >&2; return 0
+    fi
+  fi
+  echo "[impl:$which] $path \"$f1\" \"$f2\"" >&2
+  "$path" "$f1" "$f2" 2>&1 | sed -n '1,12p' >&2
+}
+
+score_file() { # file -> "tier720 dur size"
+  local f="$1"
+  read -r W H DUR VC SIZE <<<"$(probe_meta "$f")"
+  local tier=1; [[ "$H" -eq "$PREF_HEIGHT" ]] && tier=0
+  echo "$tier $DUR $SIZE"
+}
+
+pick_winner() { # A B -> "KEEP|DROP|why"
+  local a="$1" b="$2"
+  read -r aTier aDur aSize <<<"$(score_file "$a")"
+  read -r bTier bDur bSize <<<"$(score_file "$b")"
+  v "Quality scores: A[tier=$aTier dur=$aDur size=$aSize] B[tier=$bTier dur=$bDur size=$bSize]"
+  if (( aTier < bTier )); then echo "$a|$b|prefer ${PREF_HEIGHT}p (A)"; return 0; fi
+  if (( bTier < aTier )); then echo "$b|$a|prefer ${PREF_HEIGHT}p (B)"; return 0; fi
+  awk -v A="$aDur" -v B="$bDur" -v eps="$DURATION_EPS" 'BEGIN{
+    if ((A-B) > eps) print "A"; else if ((B-A) > eps) print "B"; else print "TIE";
+  }' | {
+    read who
+    if [[ "$who" == "A" ]]; then echo "$a|$b|longer duration (A)"; return 0; fi
+    if [[ "$who" == "B" ]]; then echo "$b|$a|longer duration (B)"; return 0; fi
+    if (( aSize > bSize )); then echo "$a|$b|larger file size (A)"; else
+    if (( bSize > aSize )); then echo "$b|$a|larger file size (B)"; else
+      echo "$a|$b|tie-break (keep A)"; fi; fi
+  }
+}
+
+act_on_loser() { # loser keep
+  local loser="$1" keeper="$2"
+  case "$ACTION" in
+    print)
+      echo "[ACTION] Keep:  $keeper"
+      echo "[ACTION] Drop:  $loser"
+      ;;
+    move)
+      mkdir -p -- "$TRASH_DIR"
+      if [[ $DRY -eq 1 ]]; then
+        echo "[ACTION] dry-run: mv \"$loser\" \"$TRASH_DIR/\""
+      else
+        mv -- "$loser" "$TRASH_DIR/" && echo "[ACTION] moved to trash: $loser -> $TRASH_DIR/"
+      fi
+      echo "[ACTION] kept: $keeper"
+      ;;
+    delete)
+      if [[ $DRY -eq 1 ]]; then
+        echo "[ACTION] dry-run: rm \"$loser\""
+      else
+        rm -- "$loser" && echo "[ACTION] deleted: $loser"
+      fi
+      echo "[ACTION] kept: $keeper"
+      ;;
+    *) echo "[WARN] Unknown --action='$ACTION' → printing only."; echo "[ACTION] Keep: $keeper ; Drop: $loser" ;;
+  esac
+}
+
+same_movie_or_skip() { # A B -> 0 if same (SSIM>=thr), else 1
+  local a="$1" b="$2" ssim
+  echo "== Snapshot compare @${SNAP_T}s: ==" >&2
+  ssim="$(snapshot_compare_ssim "$a" "$b" "$SNAP_T" "$SNAP_SCALE")"
+  if [[ -z "$ssim" ]]; then
+    echo "[WARN] Could not compute SSIM for: $a  vs  $b" >&2; return 1; fi
+  printf "[INFO] SSIM(All) %s vs %s → %s\n" "$(basename -- "$a")" "$(basename -- "$b")" "$ssim" >&2
+  awk -v s="$ssim" -v thr="$SNAP_SSIM" 'BEGIN{exit !(s+0 >= thr+0)}'
+}
+
+# ----- pair comparison driver -----
+compare_pair() { # A B
+  local A="$1" B="$2"
+  echo "== Step 1: Validating files =="; okA=0; okB=0
+  check_ok "$A" && okA=1; check_ok "$B" && okB=1
+  if (( okA==0 || okB==0 )); then echo "[FAIL] One or both files broken. A_ok=$okA B_ok=$okB" >&2; exit 1; fi
+  echo "[OK] Both files decoded cleanly."
+
+  echo; echo "== Step 2: Snapshot compare ==";
+  if ! same_movie_or_skip "$A" "$B"; then
+    echo "[FAIL] Files are not the same movie (SSIM < ${SNAP_SSIM})." >&2; exit 1
+  fi
+  echo "[OK] Same movie."
+
+  echo; echo "== Step 3: External compare ($IMPL) =="; run_impl "$IMPL" "$A" "$B"
+
+  echo; echo "== Step 4: Quality selection (prefer ${PREF_HEIGHT}p) ==";
+  read -r keep drop why <<<"$(pick_winner "$A" "$B" | tr '|' ' ')"
+  echo "[DECISION] Keep: $keep"; echo "[DECISION] Drop: $drop"; echo "[REASON]   $why"
+
+  echo; echo "== Step 5: Action =="; act_on_loser "$drop" "$keep"
+
+  echo; echo "== Summary =="; echo "Kept:   $keep"; echo "Dropped: $drop"
+  [[ "$ACTION" == "move" ]] && echo "(Moved loser to: $TRASH_DIR)"
+  [[ "$ACTION" == "delete" ]] && echo "(Loser was deleted)"
+  [[ $DRY -eq 1 ]] && echo "(Dry-run only; no changes made)"
+}
+
+# ----- directory scan helpers/drivers -----
+scan_and_group() {
+  if [[ $RECURSIVE -eq 1 ]]; then
+    mapfile -t FILES < <(find "$SCAN_DIR" -type f \( -iname '*.mp4' \))
+  else
+    mapfile -t FILES < <(ls "$SCAN_DIR"/*.mp4 "$SCAN_DIR"/*.MP4 2>/dev/null || true)
+  fi
+}
+
+extract_key() { # filename -> group key before first DELIM (CI), original case
+  local name="$1" low delimlow key
+  low="$(echo -n "$name" | tr '[:upper:]' '[:lower:]')"
+  delimlow="$(echo -n "$DELIM" | tr '[:upper:]' '[:lower:]')"
+  [[ "$low" == *"$delimlow"* ]] || { echo ""; return 0; }
+  key="${low%%"$delimlow"*}"
+  local cutlen=${#key}
+  echo "${name:0:$cutlen}"
+}
+
+process_group() { # files...
+  local files=("$@") n=${#files[@]}
+  if (( n < 2 )); then v "Group <2 files → skip"; return 0; fi
+  echo; echo "=== Group (${n} files): prefix before '${DELIM}' ==="
+  echo "Files:"; for f in "${files[@]}"; do echo "  - $f"; done
+
+  local best="${files[0]}"
+  if ! check_ok "$best"; then echo "[WARN] Skipping broken file: $best"; return 0; fi
+
+  for ((i=1;i<n;i++)); do
+    local cand="${files[i]}"
+    if ! check_ok "$cand"; then echo "[WARN] Skipping broken file: $cand"; continue; fi
+    echo; echo "--- Compare: $(basename -- "$best")  vs  $(basename -- "$cand") ---"
+    if ! same_movie_or_skip "$best" "$cand"; then
+      echo "[SKIP] Snapshot says NOT same movie; leaving both in place."; continue; fi
+    run_impl "$IMPL" "$best" "$cand"
+    read -r keep drop why <<<"$(pick_winner "$best" "$cand" | tr '|' ' ')"
+    echo "[DECISION] Keep: $keep"; echo "[DECISION] Drop: $drop"; echo "[REASON]   $why"
+    act_on_loser "$drop" "$keep"
+    best="$keep"
+  done
+
+  echo; echo "=== Group result: kept $(basename -- "$best") ==="
+}
+
+dir_mode() {
+  [[ -n "${SCAN_DIR:-}" ]] || SCAN_DIR="."
+  [[ -d "$SCAN_DIR" ]] || die "Not a directory: $SCAN_DIR"
+  echo ">> Directory scan mode on: $SCAN_DIR   (recursive=$RECURSIVE, delimiter='$DELIM')"
+  scan_and_group
+  if [[ ${#FILES[@]} -eq 0 ]]; then echo "No MP4 files found."; exit 0; fi
+
+  declare -A groups
+  for f in "${FILES[@]}"; do
+    base="$(basename -- "$f")"
+    key="$(extract_key "$base")"
+    [[ -z "$key" ]] && { v "No delimiter in: $base → skip grouping"; continue; }
+    groups["$key"]+=$'\n'"$f"
+  done
+
+  if [[ ${#groups[@]} -eq 0 ]]; then echo "No files with delimiter '$DELIM' found."; exit 0; fi
+
+  for k in "${!groups[@]}"; do
+    IFS=$'\n' read -r -d '' -a grpfiles < <(printf "%s" "${groups[$k]}" | sed '/^$/d' && printf '\0')
+    process_group "${grpfiles[@]}"
+  done
+
+  echo; echo ">> Directory scan complete."
+}
+
+# -------- dispatch --------
+if [[ -n "${SCAN_DIR:-}" ]]; then
+  dir_mode
+  exit 0
+fi
+
+# Pair mode
+if [[ ${#REM_ARR[@]} -lt 2 ]]; then
+  echo "Usage (pair): $0 A.mp4 B.mp4 [options]" >&2
+  echo "   or (scan): $0 --scan-dir [DIR] [--recursive] [options]" >&2
+  exit 2
+fi
+A="${REM_ARR[0]}"; B="${REM_ARR[1]}"
+[[ -f "$A" ]] || die "File not found: $A"
+[[ -f "$B" ]] || die "File not found: $B"
+compare_pair "$A" "$B"
diff --git a/wunf_upd_prefix.sh b/wunf_upd_prefix.sh
new file mode 100755
index 0000000..db6ff12
--- /dev/null
+++ b/wunf_upd_prefix.sh
@@ -0,0 +1,155 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+CSV_DEFAULT="wunf_scenes.csv"
+
+usage() {
+  echo "Användning:"
+  echo "  $0 <filnamn> [csv-fil]"
+  echo "  $0 --all <katalog> [csv-fil]"
+  echo "  $0 --list <textfil> [csv-fil]   # en väg per rad"
+  echo " ls -1 --quoting-style=literal \[WUNF\]_*.mp4 > filenames.txt && ./script/wunf_upd_prefix.sh --list filenames.txt wunf_scenes.csv && rm filenames.txt"
+  exit 1
+}
+
+rename_file() {
+  local FILE="$1"
+  local CSV="$2"
+
+  local base dir rest first second remainder name code code_us newbase newpath
+
+  if [[ ! -f "$FILE" ]]; then
+    echo "Fel: Filen finns inte: $FILE" >&2
+    return 1
+  fi
+
+  base="$(basename -- "$FILE")"
+  dir="$(dirname -- "$FILE")"
+
+  # Kontrollera prefix
+  if [[ "$base" != "[WUNF]"* ]]; then
+    echo "Hoppar över (ej [WUNF]-prefix): $base" >&2
+    return 0
+  fi
+
+  # Plocka ut allt efter prefixet [WUNF]_
+  rest="${base#"[WUNF]"}"
+  rest="${rest#_}"
+
+  IFS='_' read -r first second remainder <<< "$rest"
+
+  if [[ -z "${first:-}" || -z "${second:-}" ]]; then
+    echo "Fel: Kunde inte extrahera två namn-delar i: $base" >&2
+    return 1
+  fi
+
+  # Namn = två första token, med '_' -> ' '
+  name="${first//_/ } ${second//_/ }"
+  name="$(printf '%s' "$name" | sed -E 's/^[[:space:]]+|[[:space:]]+$//g')"
+
+  # slå upp i CSV (format Namn;Kod;Tid)
+  code="$(
+    awk -F';' -v target="$name" '
+      BEGIN{IGNORECASE=1}
+      {
+        n=$1; gsub(/^[ \t]+|[ \t]+$/, "", n);
+        if (n==target) {
+          c=$2; gsub(/^[ \t]+|[ \t]+$/, "", c);
+          print c; exit
+        }
+      }' "$CSV"
+  )"
+
+  if [[ -z "$code" ]]; then
+    echo "Ingen kod för \"$name\" hittades i $CSV (fil: $base)" >&2
+    return 1
+  fi
+
+  code_us="${code// /_}"
+
+  newbase="$(printf '%s' "$base" | sed -E "s/^\[WUNF\]/[$code_us]/")"
+  newpath="$dir/$newbase"
+
+  if [[ "$base" == "$newbase" ]]; then
+    echo "Hoppar över (redan rätt namn): $base" >&2
+    return 0
+  fi
+
+  if [[ -e "$newpath" ]]; then
+    echo "Fel: Målfilen finns redan: $newpath" >&2
+    return 1
+  fi
+
+  mv -- "$dir/$base" "$newpath"
+  echo "Bytt namn:"
+  echo "  Från: $base"
+  echo "  Till:  $newbase"
+}
+
+### Huvudprogram
+if [[ $# -lt 1 ]]; then
+  usage
+fi
+
+mode="$1"
+
+case "$mode" in
+  --all)
+    if [[ $# -lt 2 ]]; then usage; fi
+    DIR="$2"
+    CSV="${3:-$CSV_DEFAULT}"
+
+    if [[ ! -d "$DIR" ]]; then
+      echo "Fel: Katalog finns inte: $DIR" >&2
+      exit 1
+    fi
+    if [[ ! -f "$CSV" ]]; then
+      echo "Fel: CSV-filen finns inte: $CSV" >&2
+      exit 1
+    fi
+
+    shopt -s nullglob
+    for f in "$DIR"/\[WUNF\]*.mp4; do
+      rename_file "$f" "$CSV" || true
+    done
+    ;;
+
+  --list)
+    if [[ $# -lt 2 ]]; then usage; fi
+    LIST="$2"
+    CSV="${3:-$CSV_DEFAULT}"
+
+    if [[ ! -f "$LIST" ]]; then
+      echo "Fel: Textfil finns inte: $LIST" >&2
+      exit 1
+    fi
+    if [[ ! -f "$CSV" ]]; then
+      echo "Fel: CSV-filen finns inte: $CSV" >&2
+      exit 1
+    fi
+
+    # Läs en rad i taget; ignorera tomma rader och kommentarer
+    # Hanterar vägar med mellanslag korrekt
+    while IFS= read -r line || [[ -n "$line" ]]; do
+      # Trim CR (om filen är CRLF)
+      line="${line%$'\r'}"
+      # Trim whitespace runt
+      trimmed="$(printf '%s' "$line" | sed -E 's/^[[:space:]]+|[[:space:]]+$//g')"
+      # Hoppa över tomma rader och kommentarer
+      [[ -z "$trimmed" || "$trimmed" =~ ^# ]] && continue
+      rename_file "$trimmed" "$CSV" || true
+    done < "$LIST"
+    ;;
+
+  *)
+    FILE="$mode"
+    CSV="${2:-$CSV_DEFAULT}"
+
+    if [[ ! -f "$CSV" ]]; then
+      echo "Fel: CSV-filen finns inte: $CSV" >&2
+      exit 1
+    fi
+
+    rename_file "$FILE" "$CSV"
+    ;;
+esac