= screen =
Screen is a full-screen window manager that multiplexes a physical terminal between several processes, typically interactive shells.
When screen is invoked, it executes initialization commands from the files .screenrc in the user’s home directory and /usr/local/etc/screenrc. 

 * http://www.gnu.org/software/screen/manual/screen.html
 * screen --AdmS seesion1 -t tab1 /bin/bash