A new builtin to quietly run a detached process
Traditionally, this is done by redirecting stdout and stderr to /dev/null, to prevent it cluttering up the terminal, backgrounding the process then disowning it. e.g.
# xed launch.sh &> /dev/null & # disown
Launching a GUI application from the command-line with a file/directory argument is common, so we should make it quick and simple. Possible names for this builtin command: