screen - screen manager with VT100/ANSI terminal emulation

This is an excellent utility. But if you work a lot in Emacs,
then, you should place the following in your ~/.bashrc

alias s='screen -e^Pa -D -R'

After loging in again (or source .bashrc) ,
type the following to load "screen":

$ s

If you're using the not using the alias command above, substitute
CTL-a for CTL-p below. :

CTL-p CTL-C       To get a new session
CTL-p  "           To list sessions, and arrow keys to move
CTL-p SHFT-A      To name sessions
CTL-p S            To split screens
CLT-p Q            To unsplit screens
CLT-p TAB          To switch between screens
CLT-p :resize n    To resize screen to n rows, on split screen


Screen is very powerful.  Should you become disconneced, you can
still resume work after loggin in.

$ man screen