setsid command is used to run a program in a new session. A session is a group of processes that share the same controlling terminal. When you run a program with
setsid, it starts in a new session and gets a new controlling terminal. This means that the program will continue to run even if the terminal from which it was started is closed.
The syntax for using the
setsid command is as follows:
setsid program [arguments...]
program is the name of the program you want to run, and
arguments are any arguments you want to pass to the program.
For example, to run the
ls command in a new session, you would use the following command:
This would start a new session and run the
ls command in that session.
setsid command is particularly useful when you want to run a program that will continue to run even if you log out of the system or close the terminal. This is because the program is started in a new session and gets a new controlling terminal.
Another use case is when you want to run a program that needs to be disconnected from the terminal. For example, if you want to run a program that will take a long time to complete and you don’t want to tie up your terminal while it’s running, you can use
setsid to start the program in a new session.
setsid command has the following options:
||Print the process ID of the new session leader to standard output.|
||Wait for the program to exit before returning.|
If you’re having trouble running a program with
setsid, there are a few things you can try:
- Make sure you’re using the correct syntax for the command.
- Check to see if the program you’re trying to run is installed on your system.
- If you’re using the
-woption and the program isn’t exiting, try adding the
--nohupoption to the command. This will prevent the program from receiving a SIGHUP signal when you log out or close the terminal.
setsidcommand is not available on all Linux distributions. If it’s not available on your system, you can try using the