setsid(1) [v7 man page]

SETSID(1)							   User Commands							 SETSID(1)

NAME

       setsid - run a program in a new session

SYNOPSIS

       setsid [options] program [arguments]

DESCRIPTION

       setsid  runs  a	program in a new session. The command calls fork(2) if already a process group leader. Otherwise, it executes a program in
       the current process.

OPTIONS

       -c, --ctty
	      Set the controlling terminal to the current one.

       -w, --wait
	      Wait for the execution of the program to end, and return the exit value of this program as the return value of setsid.

       -V, --version
	      Display version information and exit.

       -h, --help
	      Display help text and exit.

SEE ALSO

       setsid(2)

AUTHOR

       Rick Sladkey <jrs@world.std.com>

AVAILABILITY

       The setsid command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.

util-linux							     July 2014								 SETSID(1)

SETSID(2)						      BSD System Calls Manual							 SETSID(2)

NAME

     setsid -- create session and set process group ID

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <unistd.h>

     pid_t
     setsid(void);

DESCRIPTION

     The setsid() function creates a new session.  The calling process is the session leader of the new session, is the process group leader of a
     new process group and has no controlling terminal.  The calling process is the only process in either the session or the process group.

     Upon successful completion, the setsid() function returns the value of the process group ID of the new process group, which is the same as
     the process ID of the calling process.

ERRORS

     If an error occurs, setsid() returns -1 and the global variable errno is set to indicate the error, as follows:

     [EPERM]		The calling process is already a process group leader, or the process group ID of a process other than the calling process
			matches the process ID of the calling process.

SEE ALSO

     getsid(2), setpgid(2), tcgetpgrp(3), tcsetpgrp(3)

STANDARDS

     The setsid() function conforms to ISO/IEC 9945-1:1990 (``POSIX.1'').

BSD
								   April 4, 2011							       BSD