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44 lines
946 B
Plaintext
44 lines
946 B
Plaintext
---
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syntax: markdown
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tags: [tldr, common]
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source: https://github.com/tldr-pages/tldr.git
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---
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# compgen
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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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> More information: <https://www.gnu.org/software/bash/manual/bash.html#index-compgen>.
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- List all shell built-ins, aliases, functions, and executables that you could run:
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`compgen -c`
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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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`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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- 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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- See all available commands/aliases starting with `ls`:
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`compgen -ac {{ls}}`
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- List all users on the system:
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`compgen -u`
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