>On some systems, waitpid may return something rather than a child pid or >-1. This would happen when the wait was interrupted by something other >than a child death. Most likely, it would be zero.
>The return status, $?, is a 16-bit word of three packed values. See >`perldoc perlvar` and search for /\$\?/. It should be set to a non-zero >value by the child if the child does not terminate successfully. Most >UNIX commands do this; most user-written scripts do not. Also, Windows >ignores the return value and always returns zero. >$? should not change unless a child process died. Ahhh, I see. I think I understand now. Thankyou for your help and explanations. Andy Capgemini is a trading name used by the Capgemini Group of companies which includes Capgemini UK plc, a company registered in England and Wales (number 943935) whose registered office is at No. 1 Forge End, Woking, Surrey, GU21 6DB. This message contains information that may be privileged or confidential and is the property of the Capgemini Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message. -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
