What's the difference between system, exec, and backticks in Perl?
ipc, perl
Solution
They're all different, and the docs explain how they're different. Backticks capture and return output; `system` returns an exit status, and `exec` never returns at all if it's successful.
Problem
In Perl, to run another Perl script from my script, or to run any system commands like `mv`, `cp`, `pkgadd`, `pkgrm`, `pkginfo`, `rpm` etc, we can use the following: - `system()` - `exec()` - ```` (Backticks) Are all the three the same, or are they different? Do all the three give the same result in every case? Are they used in different scenarios, like to call a Perl program we have to use `system()` and for others we have to use ````(backticks). Please advise, as I am currently using `system()` for all the calls.