2025-03-14 21:59:59 -06:00
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# compgen
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2025-12-16 10:20:31 -07:00
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> Bash built-in command for generating possible completion matches in Bash.
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> Usually used within custom completion functions.
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> See also: `complete`, `compopt`.
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2025-03-14 21:59:59 -06:00
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> More information: <https://www.gnu.org/software/bash/manual/bash.html#index-compgen>.
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2025-12-16 10:20:31 -07:00
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- List all shell built-ins, aliases, functions and executables that you could run:
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2025-03-14 21:59:59 -06:00
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`compgen -c`
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2025-12-16 10:20:31 -07:00
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- List all commands that you could run that start with a specified string and save results to `COMPREPLY`:
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2025-03-14 21:59:59 -06:00
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2025-12-16 10:20:31 -07:00
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`compgen -V COMPREPLY -c {{str}}`
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- Match against a wordlist:
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`compgen -W "{{apple orange banana}}" {{a}}`
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2025-03-14 21:59:59 -06:00
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- List all aliases:
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`compgen -a`
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- List all functions that you could run:
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`compgen -A function`
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- Show shell reserved keywords:
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`compgen -k`
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2025-12-16 10:20:31 -07:00
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- See all available commands/aliases starting with `ls`:
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2025-03-14 21:59:59 -06:00
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`compgen -ac {{ls}}`
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2025-04-03 20:36:56 -06:00
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- List all users on the system:
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`compgen -u`
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