Add this into your. bash_functions

scr ()

{

echo "Disconnect from your screen session: CTRL-A, d";

echo "Open another screen 'window': CTRL-A, c";

echo "Cycle through you open screen windows: CTRL-A, space";

read -p "Press enter to continue";

screen -ls | grep --color=auto -q Main && screen -xr Main || screen -S Main

}

export - f scr

Now you have a shortcut that remembers if you had a running session.