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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.

• 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}

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