setsid
Run a program in a new session if the calling process is not a process group leader.
The created session is by default not controlled by the current terminal.
More information: https://manned.org/setsid.
- 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