A short Tutorial for screen:
============================

I will use the uppercase letter 'C' als shortcut for the Keyboard [Control]


starting screen:
screen                       (normal startup)
screen -r [name|pid]         (attach screen with <name> or <pid>)
screen -S <name>             (start new screen and give socket-<name>)
screen -d [name|pid]         (dettach an attaches screen, useful if your move from your Home 
                              to University and forgot to detached at home :-)
screen -p <window-name>      (attach screen with window-name if exists)
screen -ls                   (show running screens, but don't attach anyone)    
screen -h <num>              (number of scrollback buffer in num lines)
screen -e ^Ba                (changes the default C-a to C-b, 
                              you have to press 'screen -e [Ctrl]+V [CTRL+b] in your shell)
screen -A -r                 (resize window on attaching to fit terminal, eg. xterm, width)


handling screen:
C-a,d       (detaches screen, d=detach)
C-a,c       (creates new screen window, c=create)               
C-a,k       (kills current window, if your are in a $SHELL simple type 'exit' or C-d)    
C-a,n       (moves to next screen window)
C-a,p       (moves to previous screen window)
C-a,N       (N is a number from 0 to 9, to switch to the corresponding window)    
C-a,"       (get a full-screen list of windows. navigate with arrow keys or vi-style.
             pick a window to activate by pressing Enter.)
C-a,w       (Same as C-a," only short display in footer)
C-a,A       (set window title name)
C-a,'       (switch to window name)
C-a,x       (lock screen, enter password to work again)
C-a,h       (make a hardcopy of the actual screen-window)
C-a,H       (enable/disable actual screen-window logging)
C-a,t       ('uptime' like info info at the status line)
C-a,m       (repeat last screen-message in status line)
C-a,?       (shows key bindings)
C-a,C       (clears the screen and saves it contents to the scrollback buffer)
C-a,l       (redraws the current screen window)
C-a,r       (toogle, the line-wrap on/off)
C-a,a       (sends [Control]-[a] to terminal, usually jumps to begining of line)
C-a,:       (execute screen command - z.B. C-A:next<CR>)
    
    
Monitor-Mode:    
C-a,M       (start/stop monitor mode for the current window)
C-a,_       (start/stop monitoring the current window for inactivity)
C-a,C-G     (toggle visual/audio bell)
C-a,:idle   (set idle action, ONLY screen >4.x)   
    

[editor-mode]copy/scroll-back: 
C-a,[       (enter the editor mode)
C-a,]       (paste the buffer to current commandline)
<space>     (set start/end point of buffer)
C-a,>       (write buffer to exchange file)
C-a,<       (read exchange file into buffer)
C-a,=       (remove exchange buffer from filesystem)    
movements:
C-u | C-d    (scroll the display half up/down)
C-b | C-f    (scroll the display up/down a full screen, in some cases [PgUp][PgDn] works also)
h, j, k, l   (move Cursor. left,right,up,down)
0, $         (begining and end of line)
H, L, M      (move Cursor. top, bottom, centerd)
+, -         (line up and down)
G            (jumps to buffer end)
g            (jumps to begin of buffer)
w,b,e        (word  forward, backward, end of word)


    
Regions:
C-a, S       Split screen
C-a, <tab>   focus windows to navigate like vi-style add this to your screenrc (bind j focus down, bind k focus up, bind t focus top, bind b focus bottom)
C-a, X       kill the current region
C-a, Q       kill all regions but the current one.
C-a, F       change the window size to the size of the current region.
resizing: (Enter command mode from screen 'C-a, :' and type ...) 
           resize +N       increase current region height by N
           resize -N       decrease current region height by N
           resize  N       set current region height to N
           resize  =       make all windows equally high
           resize  max     maximize current region height
           resize  min     minimize current region height


Multiuser Session:
multiuser on|off                 disbales multiuser mode
wall      message                write a message to all users.     
acladd    usernames              add's a user(s) name to allow to attach your screen [acladd user1,user2]
aclchg usernames permbits list   Change permissions for a comma separated list of users. permbits -/+(rwx)
  some examples: aclchg userA -w+w 2  [removes write ability to userA in window 2]
                 aclchg userB -x "#"  [removes executing rights for "#"(wall windows) on userB]
                 aclchg * -r 3        [removes all user reading rights on window 3]
                 
C-a *  show all connected users to your screen.   

                 
example for editor mode:
enter screen and generate some ouput.
- press C-a,[
- move with cursor (or h,j,k,l) around
- press space
- move again with cursor (inverted characters are marked)
- press space again      (copies marked into buffer)    
- press C-a,]            (buffer is copied to standard in, !BEWARE of pasting 'rm -rf /*' )
or/and
- press C-a,>            (buffer is written to file)
- leave screen or start new screen in other window
- press C-a,<            (reads screen-xchange file into buffer)
and
- press C-a,=            (removes buffer file)


example for Monitor mode:
enter screen
- do 'touch foobar' 'tail -f foobar'
- press C-a,M                  (activate Monitoring for actual window)
- press C-a,c                  (for new window)
- do 'echo "bla" >> foobar'    (screen-message show activity in statusbar)
- press C-a,1                  (back to first window)
- press C-a,M                  (deactivate Monitoring)
- press C-a,2                  (jump back to second window)
- do 'echo "blub" >> foobar'   (no screen message occurs)

(try this with 'C-a,_' instead of 'C-a,M' and see what happens)


example for multiuser Modus:
userB can/should connect to a screen which has userA has startet.
the commands 'multiuser on' and 'acladd userB' can also be placed into .screenrc
- <userA> starts screen
- C-a :multiuser on
- C-a :acladd userB
- userB enters 'screen -x userA/' and connects to the screen which userA hast startet.



Tips&Tricks:

-------------------- Bind Keys for window ----------------
bind  ) select 10
bind  ! select 11
bind  @ select 12
bind \# select 13
bind \$ select 14
bind  % select 15
bind \^ select 16
bind  & select 17
bind  * select 18
bind  ) select 19
The default commands include Ctrl+a 5 to select screen 5; this makes Ctrl+a Shift+5 select screen 15. 


--------------------- some usefull startup things in .screenrc -----------------
# kill startup message
startup_message off

# turn logging on for all windows
deflog on

# define a bigger scrollback, default is 100 lines !greater Memory Usage!
defscrollback 2300

# toogles the visiual bell 
vbell on

# vbell message 
vbell_msg "*knock knock* - wake up neo!"

# on Debian backspace should send char `177':
bindkey -k kb stuff "177"

# An alternative hardstatus to display a bar at the bottom listing the
# windownames and highlighting the current windowname in blue. (This is only
# enabled if there is no hardstatus setting for your terminal)
hardstatus on
hardstatus alwayslastline
hardstatus string "%{.bW}%-w%{.gW}%n %t%{-}%+w %=%{..G} %H %{..Y} %m/%d %c% "
# my old setting
# hardstatus string "%{bk}%H%{wk}|%c> %?%-Lw%?%{kb}%n*%f %t%?(%u)%?%{wk}%?%+Lw%?"


------------------ Autostart Programms -------------------
# Example of automatically running some programs in windows on screen startup.
# Use the form: screen [-flag] [window name] [window number] [program to run in window]
# The -t flag means that the window in which that program is running
# closes when you exit that program, so if you quit pine
# window 2 closes.

screen bash
screen -t vim 1 vim filofax
screen -t mail 2 mutt
screen -t slashdot 3 links http://www.slashdot.org/
screen -t bar 4 ssh foo@bar