daemon

Name

daemon -- run in the background

Synopsis

#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.

Errors

On error, -1 is returned, and errno is set to any of the errors specified for the library functions fork(2) and setsid(2).