NAME
daemon - run in the backgroundSYNOPSIS
#include <unistd.h>int daemon(int nochdir, int noclose);
DESCRIPTION
The daemon() function is for programs wishing to detach themselves from the controlling terminal and run in the background as system daemons.Unless the argument nochdir is non-zero, daemon() changes the current working directory to the root ("/").
Unless the argument noclose is non-zero, daemon() will redirect standard input, standard output and standard error to /dev/null.