Run a program in a new session - 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}}