Batch Rename Skill
Purpose
Provides powerful batch file renaming capabilities with multiple pattern support. Rename files with sequential numbers, find/replace text, add prefixes/suffixes, use regex patterns, filter by extension, and process subfolders recursively.
When to Use
Use this skill when user wants to:
- Rename multiple files at once (批量重命名)
- Add sequential numbers to filenames
- Find and replace text in filenames
- Add date prefixes or other prefixes/suffixes
- Use regex patterns for complex renaming
- Filter files by extension before renaming
- Process files in subfolders recursively
Usage Workflow
Step 1: Identify User's Rename Intent
Ask the user (or infer from their request):
- Target directory/folder path
- Rename pattern type:
- Sequential numbering:
photo_{n}.jpg→photo_001.jpg - Find & replace: Replace specific text in filenames
- Add prefix/suffix: Add date or other text
- Regex pattern: For complex transformations
- Sequential numbering:
- File extension filter (optional)
- Whether to process subfolders recursively
Step 2: Construct Rename Command
Use the scripts/batch_rename.py script with appropriate arguments:
# Sequential numbering
python scripts/batch_rename.py --path "C:/folder" --pattern "number" --format "file_{n:03d}" --ext "jpg"
# Find and replace
python scripts/batch_rename.py --path "C:/folder" --pattern "replace" --find "old" --replace "new"
# Add prefix
python scripts/batch_rename.py --path "C:/folder" --pattern "prefix" --prefix "2026-" --ext "*"
# Add suffix
python scripts/batch_rename.py --path "C:/folder" --pattern "suffix" --suffix "_backup" --ext "*.txt"
# Regex pattern
python scripts/batch_rename.py --path "C:/folder" --pattern "regex" --regex "(\d+)" --replace "ID_$1"
# Recursive with extension filter
python scripts/batch_rename.py --path "C:/folder" --pattern "number" --format "doc_{n}" --ext "pdf" --recursive
Step 3: Execute Rename
Run the command. The script will:
- Scan the target directory
- Apply filters (extension, recursive)
- Perform renaming operations
- Report results
Step 4: Report Results
Present a summary showing:
- Number of files renamed successfully
- Any errors or skipped files
- Original → New name mappings for verification
Script Arguments Reference
| Argument | Description | Required |
|---|---|---|
--path | Target directory path | Yes |
--pattern | Rename pattern: number, replace, prefix, suffix, regex | Yes |
--format | Format string for numbering (e.g., file_{n:03d}) | For --pattern number |
--find | Text to find | For --pattern replace |
--replace | Replacement text | For --pattern replace |
--prefix | Prefix to add | For --pattern prefix |
--suffix | Suffix to add | For --pattern suffix |
--regex | Regular expression pattern | For --pattern regex |
--ext | File extension filter (e.g., jpg, * for all) | No (default: all) |
--recursive | Process subfolders recursively | No |
Examples
Example 1: Add Sequential Numbers
User: "把 photos 文件夹里的图片重命名为 IMG_001, IMG_002..."
Command: python scripts/batch_rename.py --path "C:/Users/12891/photos" --pattern number --format "IMG_{n:03d}" --ext "jpg"
Example 2: Find and Replace
User: "把所有文件名里的 '_v1' 改成 '_final'"
Command: python scripts/batch_rename.py --path "C:/folder" --pattern replace --find "_v1" --replace "_final"
Example 3: Add Date Prefix
User: "给所有文档加上日期前缀 2026-04-10"
Command: python scripts/batch_rename.py --path "C:/docs" --pattern prefix --prefix "2026-04-10_" --ext "docx"
Example 4: Regex to Normalize
User: "把所有文件名的空格替换成下划线"
Command: python scripts/batch_rename.py --path "C:/folder" --pattern regex --regex "\s+" --replace "_"
Safety Notes
- Always report what will be renamed before executing
- For subfolder operations, be extra careful and confirm the scope
- Use
--extfilter to limit scope when possible - Script uses
os.rename()which may fail if file already exists at target name