SETSID(1) SETSID(1) setsid - setsid [] [] 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 . -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. -h, --help . -V, --version Display version and exit. Rick Sladkey setsid(2) For bug reports, use the issue tracker . setsid Linux Kernel Archive util-linux . util-linux 2.42.3 2026-09-02 SETSID(1)