Perl Programming/Keywords/exec
The exec keyword
editexec executes a system command and quits the Perl program. To return back, system should be used. The only way exec returns, if the command does not exist and it is executed directly instead of via your system's command shell. In this case, it fails and returns false.
Syntax
edit eval EXPRESSION
eval PROGRAM LIST
Examples
edit exec ('foo') or print STDERR "couldn't exec foo: $!";