Look how nice I was, I printed you a man page digitally.

mattdaemon.txt

leflor@machine-7:~/codeground/Droid-Net$ man daemon


DAEMON(3)                  Linux Programmer's Manual                 DAEMON(3)

NAME
       daemon - run in the background

SYNOPSIS
       #include <unistd.h>

       int daemon(int nochdir, int noclose);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       daemon(): _BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500)

DESCRIPTION
       The daemon() function is for programs wishing to detach themselves from
       the controlling terminal and run in the background as system daemons.

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For more see your local linux man pages found at http://kernel.org