Can I nohup/screen an already-started process?
GNU screen is great for long running programmes. You can start your programme in it and disconnect and bring your laptop home.
However sometimes I start a programme outside screen and it takes longer than I want. I have no problem with pausing the programme using Control - Z etc., however I don't want to restart it cause then it'll take ages to run again. Is there some way I can move an existing running process into a screen session?