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How do I fork a daemon process?

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How do I fork a daemon process?

If by daemon process you mean one that's detached (disassociated from its tty), then the following process is reported to work on most Unixish systems. Non-Unix users should check their Your_OS::Process module for other solutions.

  • Open /dev/tty and use the the TIOCNOTTY ioctl on it. See tty(4) for details.

  • Change directory to /

  • Reopen STDIN, STDOUT, and STDERR so they're not connected to the old tty.

  • Background yourself like this:

        fork && exit;

Source: Perl FAQ: System Interaction
Copyright: Copyright (c) 1997 Tom Christiansen and Nathan Torkington.
Next: How do I make my program run with sh and csh?

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