tldr/pages/common/grex.md

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# grex
> Generate regular expressions.
> More information: <https://github.com/pemistahl/grex>.
- Generate a simple regular expression:
` grex {{space_separated_strings}}`
- Generate a case-insensitive regular expression:
`grex -i {{space_separated_strings}}`
- Replace digits with '\d':
`grex -d {{space_separated_strings}}`
- Replace Unicode word character with '\w':
`grex -w {{space_separated_strings}}`
- Replace spaces with '\s':
`grex -s {{space_separated_strings}}`
- Add {min, max} quantifier representation for repeating sub-strings:
`grex -r {{space_separated_strings}}`