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wait

Perl 5 version 10.0 documentation
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wait

  • wait

    Behaves like the wait(2) system call 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.