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Delegate a process to a file, for later reattachment? (feddit.uk)

submitted 1 week ago* (last edited 1 week ago) by tetris11@feddit.uk 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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[–] tetris11@feddit.uk 1 points 5 days ago (1 children)

Don't both require me to know the nature of the data beforehand?

Please don't B/M on me

[–] just_another_person@lemmy.world 1 points 4 days ago (1 children)

No. https://www.man7.org/linux/man-pages/man1/logger.1.html

[–] tetris11@feddit.uk 1 points 4 days ago (1 children)

Oh a systemd-logger, I dont have access to the logs, only the admin does. Plus I can't reattach to the process that way

[–] just_another_person@lemmy.world 2 points 4 days ago (1 children)

You can use it to log to a defined file in userspace. You don't need to "reattach" to the process because all of the output goes through this util. Use signal handling to control the process.

[–] tetris11@feddit.uk 1 points 4 days ago

You're probably right that that's likely enough for non-interactive tools