\section exec exec - execute command in current process \subsection exec-synopsis Synopsis <tt>exec COMMAND [OPTIONS...]</tt> \subsection exec-description Description \c exec replaces the currently running shell with a new command. On successful completion, \c exec never returns. \c exec cannot be used inside a pipeline. \subsection exec-example Example <tt>exec emacs</tt> starts up the emacs text editor, and exits \c fish. When emacs exits, the session will terminate.