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tldr/pages/common/repren.md
Managor ba6daef39d
*: standardize regex usage (#17328)
Co-authored-by: Dylan <145150333+dmmqz@users.noreply.github.com>
2025-07-25 08:50:06 +03:00

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# repren
> Multi-pattern string replacement and file renaming tool.
> More information: <https://github.com/jlevy/repren>.
- Do a dry-run renaming a directory of PNGs with a literal string replacement:
`repren {{[-n|--dry-run]}} --rename --literal --from '{{find_string}}' --to '{{replacement_string}}' {{*.png}}`
- Do a dry-run renaming a directory of JPEGs with a `regex`:
`repren --rename {{[-n|--dry-run]}} --from '{{regex}}' --to '{{replacement_string}}' {{*.jpg}} {{*.jpeg}}`
- Do a find-and-replace on the contents of a directory of CSV files:
`repren --from '{{([0-9]+) example_string}}' --to '{{replacement_string \1}}' {{*.csv}}`
- Do both a find-and-replace and a rename operation at the same time, using a pattern file:
`repren {{[-p|--patterns]}} {{path/to/patfile.ext}} --full {{*.txt}}`
- Do a case-insensitive rename:
`repren --rename {{[-i|--insensitive]}} {{[-p|--patterns]}} {{path/to/patfile.ext}} *`