Batch File Renamer

Rename multiple files at once with patterns.

Features

• Add prefix to filenames
• Add suffix before extension
• Sequential numbering (001, 002, ...)
• Dry-run mode (preview without changes)
• Pure Python, no external dependencies

Usage

# Preview renaming
python3 scripts/batch_rename.py --dir ./photos --prefix "vacation_" --dry-run

# Actually rename
python3 scripts/batch_rename.py --dir ./photos --prefix "vacation_"

Examples

Rename files in a directory:

• photo.jpg → vacation_001.jpg
• image.png → vacation_002.png
• pic.gif → vacation_003.gif

Notes

• Preserves file extensions
• Does not overwrite existing files
• Use --dry-run first to preview changes

Exit Codes

• 0: Success
• 1: Directory not found or permission error

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