How many ways do you know to execute a Linux commands in background and detach from terminal session? Below are several ways to achieve this task via command line.
Using screen utility to execute single or multiple commands.
# for single command
$ screen -dm COMMAND
# for multiple commands
$ screne -dm bash -c "COMMAND_1; COMMAND_2; ..."
The infamous nohup command.
$ nohup COMMAND &
Using disown.
$ COMMAND & disown
If you provide -h flag for disown, it will work like nohup.
$ COMMAND & disown -h
Using setsid.
$ setsid COMMAND >& /dev/null &
Using sub-shell.
$ (COMMAND >& /dev/null &)
Even better, you can try to combine them together. For example,
$ (nohup COMMAND >& /dev/null &)
$ (setsid COMMAND >& /dev/null &)
$ (setsid COMMAND >& /dev/null) & disown
