abduco
abduco is a lightweight utility letting programs run independently of the controlling terminal. In that matter it's similar to tmux and GNU Screen, but without multiplexing capability.
Installation
Session management
abduco -c SESSION_NAME COMMAND... will start COMMAND... in a session named SESSION_NAME, which may be later referenced.
To detach, either press Ctrl+\ or close the controlling terminal. In both cases the process will remain alive.
To reattach to a SESSION_NAME, use abduco -a SESSION_NAME.
Invoking abduco with no options prints the list of sessions.
Limitations
The process started in an abduco session retains the TERM variable it has been invoked with. While reattaching, a compatible type of terminal must be used.
abduco does not provide multiple windows and multiplexing. If that is needed, use tmux or GNU Screen.