tldr/pages/common/repren.md

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# repren
> Multi-pattern string replacement and file renaming tool.
> More information: <https://github.com/jlevy/repren>.
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- Do a dry-run renaming a directory of pngs with a literal string replacement:
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`repren --dry-run --rename --literal --from '{{find_string}}' --to '{{replacement_string}}' {{*.png}}`
- Do a dry-run renaming a directory of jpegs with a regular expression:
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`repren --rename --dry-run --from '{{regular_expression}}' --to '{{replacement_string}}' {{*.jpg}} {{*.jpeg}}`
- Do a find-and-replace on the contents of a directory of csv files:
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`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 --patterns {{path/to/patfile.ext}} --full {{*.txt}}`
- Do a case-insensitive rename:
`repren --rename --insensitive --patterns {{path/to/patfile.ext}} *`