Answer Posted / ramesh

Both Perl's exec() function and system() function execute a
system shell command. The big difference is that system()
creates a fork process and waits to see if the command
succeeds or fails - returning a value. exec() does not
return anything, it simply executes the command. Neither of
these commands should be used to capture the output of a
system call. If your goal is to capture output, you should
use the

$result = system(PROGRAM);
exec(PROGRAM);

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