= Gnu Screen Tips

Screen multiplexes a physical terminal between several shells.

== Info sources

# [[http://www.gnu.org/software/screen/manual/html_node|Screen User's Manual]]
# [[http://www.tutorials.de/linux-tutorials/151906-einfuehrung-screen.html|Einführung in Screen]]

== Configuration

Append

{{{
shell -bash
shell -$SHELL #alternativ, from ~./screenrc
bindkey -d ^@ stuff ^H
}}}

to ''~/.screenrc'' or to ''/etc/screenrc'' to automatically get a login shell and to enable the Backspace key. [[http://www4.informatik.uni-erlangen.de/~jnweiger/screen-faq.html|Login source]],  [[http://www.deadlock.it/linux/fix-gnu-screen-backspace-misinterpretation/|Backspace source]]

Note: The already existing {{{~./screenrc}}} file probably comes from {{{/etc/skel/.screenrc}}}
== Commands

{{{
C-a ?     display a list of the available screen commands and their bindings
C-a v     show screen version. Can be used to check if screen is running

C-a S     Split the current region horizontally into two new ones
C-a |     (Sometimes) split the current region vertically into two new ones
C-a <Tab> Move the input focus to the next region
C-a X     Kill the current region.

C-a c     Establish a new window (termial)
C-a n     next window
C-a p     provious window
C-a "     window list
C-a K     kill current window

C-a [     Enter copy/scrollback mode. Scroll with arrow keys
C-a ]     Paste
}}}

== Serial communication

Establish serial connection with eg: ''screen /dev/ttyUSB1 115200''

See also: [[man>screen#heading9|Window Types]]

== Session Management

{{{
C-a d       detach screen session. Started programs continue
screen -ls  prints a list of pid.tty.host strings identifying your screen sessions
screen -R   reattach detachted screen session
}}}