I recently learned about #reptyr, which allows you to reattach a running process to a different terminal, for example a #tmux one, in case you have to close or exit the current session.

what do you do if you opened a file in vim in a different terminal?

reptyr PID_OF_VIM

(you can find the PID in the message that vim gives you)

But in more recent systems this may fail. The reason is limitations on ptrace.

So a potential workaround is to temporarily remove this limitation:

sudo sysctl kernel.yama.ptrace_scope=0
reptyr PID_OF_VIM
sudo sysctl kernel.yama.ptrace_scope=1

#reptyr #ptrace #sysctl