DAEMON

Section: Linux Programmer's Manual (3)
Updated: 1993-06-09
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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

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).

HISTORY

The daemon() function first appeared in BSD4.4.

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Time: 03:42:35 GMT, April 26, 2024