simple example of using linux screen command

To start a named screen session:

screen -S myname

To detach from current screen:

ctrl-a d

To list screens:

screen -ls

To reattach to a screen:

screen -r screen_name

To reattch to a screen and detach the existing attached screen:

screen -dr screen_name

To create a window inside a screen

ctrl-a c

To go to next or previous window

ctrl-a n

ctrl-a p

Some reference:

http://www.soulcast.com/post/show/55079/An-introduction-to-the-linux-screen-command