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`B100`F9d9`!command`!`f`b is a `F33f`_`[shell`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Unix_shell]`_`f `F33f`_`[command`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Command_(computing)]`_`f for executing a command without invoking a `F33f`_`[function`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Function_(computing)]`_`f or `F33f`_`[alias`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Alias_(command)]`_`f that has the same name.`:cite-ref-1[`F5bf`_`[1`#cite-note-1]`_`f] The `F33f`_`[command line`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Command_line]`_`f arguments consist of an inner command line to executed. If the first argument is the name of a function or alias as well as the name of a command, then normally the function or alias takes precedence, but when passed as an argument to `B100`F9d9command`f`b the inner command is invoked instead of the function.`:cite-ref-2[`F5bf`_`[2`#cite-note-2]`_`f]

The command is available on `F33f`_`[Unix`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Unix]`_`f and `F33f`_`[Unix-like`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Unix-like]`_`f `F33f`_`[operating systems`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Operating_system]`_`f. It is specified in the `F33f`_`[POSIX`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=POSIX]`_`f standard and is often implemented in `F33f`_`[Unix shells`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Unix_shell]`_`f as a `F33f`_`[shell builtin`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Shell_builtin]`_`f function or alias.

>>Contents

• `F0af`_`[Examples`#examples]`_`f

• `F0af`_`[See also`#see-also]`_`f

• `F0af`_`[References`#references]`_`f

• `F0af`_`[External links`#external-links]`_`f

-─

>>Examples

In the following, the `B100`F9d9ls`f`b command is run directly instead of invoking a function or alias with the same name.

`B100`F9d9$ command ls`f`b

>>See also

• `F33f`_`[List of POSIX commands`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=List_of_POSIX_commands]`_`f

>>References

`:cite-note-1`!1.`! `F0af`_`[↑`#cite-ref-1]`_`f "command - manned.org". `*POSIX Programmer's Manual`*. Retrieved 13 February 2025.

`:cite-note-2`!2.`! `F0af`_`[↑`#cite-ref-2]`_`f "command(1p)". `*Linux manual page`*. Retrieved 13 February 2025.

>>External links

• `B100`F9d9command`f`b – Shell and Utilities Reference, `F33f`_`[The Single UNIX Specification`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Single_Unix_Specification]`_`f, Version 5 from `F33f`_`[The Open Group`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=The_Open_Group]`_`f

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