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November 26, 2025 02:38
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Convert jp2.zip archives to CBZ archives.
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| #!/bin/bash | |
| # Convert an achive of zipped JP2 files to a CBZ archive. | |
| # Must have ImageMagick with the JP2 extensions enabled. | |
| set -ex | |
| # Get our arguments, and unzip the file. | |
| input="$1" | |
| input_dir=$(dirname "$input") | |
| input_basename=$(basename "$input") | |
| cd "$input_dir" | |
| unzip "$input_basename" -d "$input_basename".tmp | |
| cd "$input_basename".tmp | |
| # Convert all files to jgg. | |
| for file in */*.jp2; do | |
| jpg="${file%.jp2}.jpg" | |
| convert "$file" "$jpg" | |
| rm "$file" | |
| done | |
| # Zip all the subdirectories. | |
| for dir in *; do | |
| zip -qr "$dir".zip "$dir" | |
| mv "$dir".zip "$dir".cbz | |
| done | |
| # Move all the cbz files upwards and remove the tmp directory. | |
| cd .. | |
| for cbz in "$input_basename".tmp/*.cbz; do | |
| basename=$(basename "$cbz") | |
| mv "$cbz" "$basename" | |
| done | |
| rm -r "$input_basename".tmp |
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Worked a treat, thanks!
FYI on macOS: