() creates a subshell, and & runs the command in background. The $@ means everything after the first argument, so the <command> is executed like a normal command. I am not sure why this works, but it has worked more consistently than nohup, disown, and it’s a lot shorter than most other solutions.
IIRC disown is a shell built-in command, so its use is a bit limited. Not sure if & is also a built-in, but I found disown to not work in some situations. Besides, it’s shorter.
I have a script named d in my PATH and it contains this:
("$@" > /dev/null 2>&1 &)
It allows me to run any program in a fully detached state in a way that works even if the terminal that started the program closes, and it’s as simple as d <command>.
🗣️🗣️ “The war is at its height – wear my armor and beat my war drums. Do not announce my death.” 🗣️🗣️🔥🔥🔥🔥