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\section exec exec - execute command in current process
\subsection exec-synopsis Synopsis
<tt>exec COMMAND [OPTIONS...]</tt>
\subsection exec-description Description
The \c exec builtin is used to replace the currently running shells
process image with a new command. On successful completion, exec never
returns. exec can not be used inside a pipeline.
\subsection exec-example Example
<tt>exec emacs</tt> starts up the emacs text editor. When emacs exits,
the session will terminate.
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