snippetbashTip
look — Display lines beginning with a prefix in a sorted file. Note: The lines in the file must be sorted.
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linescommandbeginningprefixcliwithlookdisplay
Problem
How to use the
look command: Display lines beginning with a prefix in a sorted file. Note: The lines in the file must be sorted. See also: grep, sort. More information: <https://man.openbsd.org/look>.Solution
look — Display lines beginning with a prefix in a sorted file. Note: The lines in the file must be sorted. See also: grep, sort. More information: <https://man.openbsd.org/look>.Search for lines beginning with a specific prefix in a specific file:
look {{prefix}} {{path/to/file}}Case-insensitively search only on 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 (--alphanum and --ignore-case are assumed):look {{prefix}}Code Snippets
Search for lines beginning with a specific prefix in a specific file
look {{prefix}} {{path/to/file}}Case-insensitively search only on 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` (`--alphanum` and `--ignore-case` are assumed)
look {{prefix}}Context
tldr-pages: common/look
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