# wait - perldoc - [phpMan]

    wait    Behaves like [wait(2)](https://www.chedong.com/phpMan.php/man/wait/2/markdown) on your system: it waits for a child
            process to terminate and returns the pid of the deceased
            process, or -1 if there are no child processes. The status is
            returned in $? and "${^CHILD_ERROR_NATIVE}". Note that a return
            value of -1 could mean that child processes are being
            automatically reaped, as described in perlipc.

            If you use "wait" in your handler for $SIG{CHLD}, it may
            accidentally wait for the child created by "qx" or "system". See
            perlipc for details.

            Portability issues: "wait" in perlport.