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rgrep: add page (#7021)

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dz-at-tc 2021-10-17 15:35:05 -04:00 • committed by GitHub
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# rgrep
> Recursively find patterns in files using regular expressions.
> Equivalent to `grep -r`.
> More information: <https://www.gnu.org/software/grep/manual/grep.html>.
- Recursively search for a pattern in the current working directory:
`rgrep "{{search_pattern}}"`
- Recursively search for a case-insensitive pattern in the current working directory:
`rgrep --ignore-case "{{search_pattern}}"`
- Recursively search for an extended regular expression pattern (supports `?`, `+`, `{}`, `()` and `|`) in the current working directory:
`rgrep --extended-regexp "{{search_pattern}}"`
- Recursively search for an exact string (disables regular expressions) in the current working directory:
`rgrep --fixed-strings "{{exact_string}}"`
- Recursively search for a pattern in a specified directory (or file):
`rgrep "{{search_pattern}}" {{path/to/file_or_directory}}`