Delegate a process to a file, for later reattachment?

Is such a think possible under Linux? Yeah I know I can tmux / nohup, and I know that if I dig deep enough I can manually reattach some of the file descriptors under /proc to get a working terminal for that process again… … but is there a tool that automatically does this somehow? e.g. ```bash run -d ./bash long-running.sh [http://long-running.sh] > proc.file ### later run -a proc.file ````