View source for Bash $() and ()

=Internal=
* [[Bash_Concepts#.28....29|bash concepts]]

=Overview=

(...) executes the command into a subshell:

<syntaxhighlight lang='bash'>
(ls -al)
</syntaxhighlight>

If the command executes as such invokes <code>exit</code>, the calling shell does not exit.

$(...) is the syntax for command substitution. More details about command substitution are available here:
{{Internal|Bash_Command_Substitution|bash Command Substitution}}