Auto backup: 2026-02-20 13:01

skills/youtube-transcript-analyzer/scripts/extract_transcript.sh

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+#!/bin/bash
+
+# YouTube Transcript Extractor
+# Extracts and cleans transcript from YouTube video URL
+
+set -e
+
+if [ $# -eq 0 ]; then
+    echo "Usage: $0 <youtube-url> [output-file]"
+    echo "Example: $0 'https://www.youtube.com/watch?v=dQw4w9WgXcQ' transcript.txt"
+    exit 1
+fi
+
+VIDEO_URL="$1"
+OUTPUT_FILE="${2:-transcript.txt}"
+
+# Check if yt-dlp exists
+if ! command -v yt-dlp &> /dev/null; then
+    # Try to find it in home directory
+    if [ -f "$HOME/yt-dlp" ]; then
+        YT_DLP="$HOME/yt-dlp"
+    else
+        echo "Error: yt-dlp not found. Installing to ~/yt-dlp..."
+        curl -L https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp -o "$HOME/yt-dlp"
+        chmod +x "$HOME/yt-dlp"
+        YT_DLP="$HOME/yt-dlp"
+    fi
+else
+    YT_DLP="yt-dlp"
+fi
+
+echo "Extracting transcript from: $VIDEO_URL"
+
+# Extract transcript as VTT subtitle file
+$YT_DLP --write-auto-sub --write-sub --sub-lang en --skip-download --sub-format vtt "$VIDEO_URL" -o "temp_transcript" --quiet 2>/dev/null || {
+    echo "Warning: Some warnings occurred during extraction, but continuing..."
+}
+
+# Check if transcript was extracted
+if [ ! -f "temp_transcript.en.vtt" ]; then
+    echo "Error: Failed to extract transcript. Video may not have captions available."
+    exit 1
+fi
+
+echo "Cleaning transcript..."
+
+# Clean up the VTT format to extract just the text
+grep -v "^[0-9]" temp_transcript.en.vtt | \
+grep -v "^WEBVTT" | \
+grep -v "^Kind:" | \
+grep -v "^Language:" | \
+grep -v "^\s*$" | \
+grep -v "align:start" | \
+sed 's/<[^>]*>//g' | \
+tr '\n' ' ' | \
+sed 's/  */ /g' | \
+sed 's/^ *//g' | \
+sed 's/ *$//g' > "$OUTPUT_FILE"
+
+# Clean up temporary file
+rm -f temp_transcript.en.vtt
+
+echo "Transcript saved to: $OUTPUT_FILE"
+echo "Character count: $(wc -c < "$OUTPUT_FILE")"
+
+# Show first few lines as preview
+echo -e "\nPreview:"
+head -c 200 "$OUTPUT_FILE"
+echo -e "...\n"