DAEMON
NAME SYNOPSIS DESCRIPTION ERRORS SEE ALSO HISTORY
daemon - run in the background
#include
int daemon (int nochdir, int noclose);
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.
If an error occurs, daemon() returns -1 and sets the global variable errno to any of the errors specified for the library functions fork(2) and setsid(2).
The daemon() function first appeared in BSD4.4.