Screen reattach script for bash/zsh/etc..

screen.sh

# If we're not in screen, resume the existing session
if [[ "$TERM" != screen* ]]; then
    # Clean up old sessions
    screen -wipe > /dev/null

    # See if there are sessions available
    screen -q -ls
    if [[ "$?" -ge "10" ]]; then
        # Reconnect if there are
        exec screen -x
    else
        # Create a new session if not
        exec screen
    fi
fi