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․ ⚬ˢʰ｜Definition｜1st｜20260110123847-00-⌔

Dot (command) - Wikipedia

Dot (command)

In a Unix shell, the full stop called the dot command (.) is a command that evaluates commands in a computer file in the current execution context.¹ In the C shell, a similar functionality is provided as the source command,² and this name is seen in “extended” POSIX shells as well.³⁴

The dot command is not to be confused with a dot file, which is a dot-prefixed hidden file or hidden directory. Nor is it to be confused with the ./scriptfile notation for running commands, which is simply a relative path pointing to the current directory (notated in Unix as a ’.’ character, and typically outside of the Path variable).

Printed 2026-06-28.

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Footnotes

1. “POSIX.1:2013 Shell Command Language § dot”. Retrieved 23 May 2016. ↩

2. “Csh man page#command”. Retrieved 23 May 2016. ↩

3. “Bash Reference Manual § Bourne Shell Builtins”. Retrieved 23 May 2016. ↩

4. “ZSH Shell Builtin Commands”. Retrieved 23 May 2016. ↩

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․ ⚬ˢʰ｜docu｜1st｜20260107023823-00-◊

dot(1p) - Linux manual page
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