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cheatsheet-tldr/tldr/ack
2025-12-31 00:22:26 +00:00

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1.1 KiB
Perl

---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# ack
> A search tool like `grep`, optimized for developers.
> See also: `rg`.
> More information: <https://beyondgrep.com/documentation/>.
- Search for files containing a string or `regex` in the current directory recursively:
`ack "{{search_pattern}}"`
- Search for a case-insensitive pattern:
`ack {{[-i|--ignore-case]}} "{{search_pattern}}"`
- Search for lines matching a pattern, printing only the matched text and not the rest of the line:
`ack {{[-o|--output '$&']}} "{{search_pattern}}"`
- Limit search to files of a specific type:
`ack {{[-t|--type]}} {{ruby}} "{{search_pattern}}"`
- Do not search in files of a specific type:
`ack {{[-t|--type]}} no{{ruby}} "{{search_pattern}}"`
- Count the total number of matches found:
`ack {{[-c|--count]}} {{[-h|--no-filename]}} "{{search_pattern}}"`
- Print the file names and the number of matches for each file only:
`ack {{[-c|--count]}} {{[-l|--files-with-matches]}} "{{search_pattern}}"`
- List all the values that can be used with `--type`:
`ack --help-types`