Exec( command )
Exec
executes the command given by the string command in the
operating system. How this happens is operating system dependent. Under
UNIX, for example, a new shell is started and command is passed as a
command to this shell.
gap> Exec( "date" ); Fri Dec 13 17:00:29 MET 1991
Edit
(see Edit) should be used to call an editor from within GAP.
GAP 3.4.4