setsid - Man Page

• Run a program in a new session: setsid program
• Run a program in a new session discarding the resulting output and error: setsid program > /dev/null 2>&1
• Run a program creating a new process: setsid --fork program
• Return the exit code of a program as the exit code of setsid when the program exits: setsid --wait program
• Run a program in a new session setting the current terminal as the controlling terminal: setsid --ctty program

tldr.sh

setsid [options] program [arguments]

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. This default behavior is possible to override by the --fork option.

-c,  --ctty

Set the controlling terminal to the current one.

-f,  --fork

Always create a new process.

-w,  --wait

Wait for the execution of the program to end, and return the exit status of this program as the exit status of setsid.

-V,  --version

Display version information and exit.

-h,  --help

Display help text and exit.

Rick Sladkey

setsid(2)

For bug reports, use the issue tracker at https://github.com/util-linux/util-linux/issues.

The setsid command is part of the util-linux package which can be downloaded from Linux Kernel Archive.

setsid(2), socat1(1).