What is the difference between for & foreach, exec &
system?
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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);
| Is This Answer Correct ? | 12 Yes | 11 No |
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