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Perl Language Reference Manual
by Larry Wall and others
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20.3.2 Background Processes

You can run a command in the background with:

system("cmd &");

The command's STDOUT and STDERR (and possibly STDIN, depending on your shell) will be the same as the parent's. You won't need to catch SIGCHLD because of the double-fork taking place (see below for more details).

ISBN 9781906966027Perl Language Reference ManualSee the print edition