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Delegate a process to a file, for later reattachment? (feddit.uk)
submitted 2 weeks ago by to c/linux@programming.dev
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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.

run -d ./bash long-running.sh  >  proc.file
### later
run -a  proc.file

Edit: Y'all really know how to recreate the feeling of StackOverflow circa 2018

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[–] 3 points 2 weeks ago* (1 child)

I googled it for you and found this: https://serverfault.com/questions/24425/can-i-nohup-screen-an-already-started-process

It doesn't create a file, but you don't need one. Read all the answers for options on reattaching. I haven't used it, so I can't vouch for any of them. (Personally I just use byobu and have it start with each shell, so I'm always running tmux.)

I don't think there's any system that can reliably freeze a single process to disk. Usually that's implemented by the program itself.

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