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cheatsheet-tldr/tldr/linux/look
2024-06-12 00:14:27 +00:00

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---
syntax: markdown
tags: [tldr, linux]
source: https://github.com/tldr-pages/tldr.git
---
# look
> Display lines beginning with a prefix in a file.
> Note: the lines in the file must be sorted.
> See also: `grep`, `sort`.
> More information: <https://manned.org/look>.
- Search for lines beginning with a specific prefix in a specific file:
`look {{prefix}} {{path/to/file}}`
- Case-insensitively search only on blank and alphanumeric characters:
`look {{-f|--ignore-case}} {{-d|--alphanum}} {{prefix}} {{path/to/file}}`
- Specify a string termination character (space by default):
`look {{-t|--terminate}} {{,}}`
- Search in `/usr/share/dict/words` (`--ignore-case` and `--alphanum` are assumed):
`look {{prefix}}`
- Search in `/usr/share/dict/web2` (`--ignore-case` and `--alphanum` are assumed):
`look {{-a|--alternative}} {{prefix}}`