Hi screen-users,
* Gregor Zattler <[EMAIL PROTECTED]> [14. Mär. 2006]:
> Hi screen-users,
>
> via screen -x it is possible to attach several times from
> various displays to one single screen session. But how do I end
> one such connection to this screen session without detatching the
> others (via command line)?
>
> I use this simple line of bash script:
>
> { emacsclient --alternate-editor "emacs -nw" "$@" ; screen -d emacsserver ;
> } &>/dev/null & screen -x emacsserver
>
> to attach to an emacsserver running in a screen session. If I use
> this script several times from several windows for different files I
> will see the last opened file in all windows (that's not optimal
> but o.k.). When done with editing one file (via ^x# aka
> server-edit) all windows show the previous file. But then my
> script detaches this screen session running emacsserver via
> screen -d and this screen session is detached for all windows
> instead only for the one I'm currently working in.
>
> The crucial part is "screen -d emacsserver". Any ideas what to
> do instead?
Torsten Scheck had the correct idea: Use
"screen -x emacsserver -X detach" instead of "screen -d emacsserver".
Now there is another but minor problem: Most times I use this
script from within a screen window. In this cases of a "screen in
screen" situation the outer screen grabs at all screen keyboard
commands. How do I send keyboard commands to the inner screen
session (e.g. ^aF)?
Script attached. Warning: The emacs screen session uses "°" as
command character since ^a is not usable when working with
emacs.
Ciao, Gregor
#!/bin/sh
#set -x
# Using emacsclient and emacs server for editing files is very
# fast and since all files are edited in the same emacs instance
# you can e.g. kill-and-yank between different buffers.
# This script transparently edits files with emacsclient from the
# console, from xterm or from within a screen session running on
# the console or on a xterm.
# As visible difference to running one emacs instance for every
# file you will see in every window the very same buffer because
# all files are edited in the same emacs instance which runs in a
# screen session.
# You may want to set your EDITOR and VISUAL environment
# variables to this script. E. g.:
# EDITOR=/usr/local/bin/ec
# VISUAL=/usr/local/bin/ec
# For emacsclient to work, we need an already running Emacs with
# a server. If the emacs server is not already running then
# start it in an detached screen session and wait until startup
# finished.
if ! screen -ls|grep emacsserver >/dev/null ; then
# screen command line options:
# -a: all terminal capabilities
# -fn: no flow control
# -e °°: use ° as command character since the default is unusable with emacs
# -d -m: start in detached mode
# -S emmacsserver: call this session 'emacsserver'
# -t emacs: window title is 'emacs'
# emacs command line options:
# -nw: do not use graphical interface
# -f server-start: Execute the lisp function 'server-start'
# --unibyte: Do almost everything with single-byte buffers
# and strings; this you may change
screen -a -fn -e °° -d -m -S emacsserver -t emacs emacs -nw --unibyte -f
server-start
echo "please wait patiently"
until ps xu | grep '/[e]macsserver' > /dev/null ; do
sleep 1
done
# Do not show hard status line since we use this screen
# session as transparent replacement for an emacs invokation
screen -x emacsserver -X hardstatus ignore
fi
# As a background process connect to the emacs server via
# emacsclient. When the user finished editing the buffer, s/he
# types `C-x #' (`server-edit'). This sends a message back to
# the `emacsclient' program telling it to exit. Then we close
# the screen the session connected to the emacs server.
# Use 'emacs -w' as fallback if connection to the emacs server
# fails. It's probably a safer to avoid emacs as fallback.
{
emacsclient --alternate-editor "emacs -nw" "$@"
screen -x emacsserver -X detach ;
} 2>&1 | egrep -v "Waiting for Emacs|No screen session found|screen is
terminating" &
# Wait until this script connets to screen session 'emacsserver'
# in multi-display mode. The fit this screen session to the
# terminal.
{
until ps t | grep 'screen -x emacsserver' > /dev/null ; do
sleep 0.01
done
screen -x emacsserver -X fit ;
} &
# Connect to screen session 'emacsserver' in multi-display mode.
screen -x emacsserver
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