Switching between processes

You can't directly switch a process from one terminal to another. However, if you use the screen command, you can detach and re-attach sessions. If your session crashes, you can log in, run screen, and re-attach the old screen sessions. For more information on the screen command, check the manual page by typing

% man screen

at the command prompt.

Also, you can save your work in emacs. First, tell the emacs process to save your work in a temporary file and exit:

kill -HUP PID 
kill -TERM PID 
kill -KILL PID 

(where "PID" is the PID of the emacs process)