FAQ 8.24 Why can't I get the output of a command with system()?

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8.24: Why can't I get the output of a command with system()?

    You're confusing the purpose of system() and backticks (``). system()
    runs a command and returns exit status information (as a 16 bit value:
    the low 7 bits are the signal the process died from, if any, and the
    high 8 bits are the actual exit value). Backticks (``) run a command and
    return what it sent to STDOUT.

            $exit_status   = system("mail-users");
            $output_string = `ls`;


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