Possible additions to x11.en.xml?

File: x11.en.xml, section Tips, change or addition in red

8.1 Launching X11 apps from Terminal.app

To launch X11 applications from a Terminal.app window, you must set the 
environment variable "DISPLAY". This variable tells the applications 
where to find the X11 window server.
In the default setup - XDarwin runs on the same machine - you can set 
the variable as follows:
• For tcsh users:
setenv DISPLAY :0.0
• For bash users:
export DISPLAY=":0.0"

  A nice setup is to have XDarwin.app started when you log in (settable 
in the Login panel of the System Preferences):
• For tcsh users:
  Add the following to your .cshrc:
if (! $?DISPLAY) then
   setenv DISPLAY :0.0
endif
•For zsh users:
Add the following to your .zhrc file:
if [[ -z $?DISPLAY ]] then
    export DISPLAY=":0.0"
endif
Same syntax for bash users???

  This sets DISPLAY automatically in every shell. It doesn't override 
the current value when DISPLAY is already set, though. This way you can 
still run X11 applications remotely or through ssh with X11 tunneling.

  8.2 Launching Aqua apps from an xterm

One way to launch Aqua applications from an xterm (or any other shell, 
actually) is the open command. Some examples:
open /Applications/TextEdit.app
open SomeDocument.rtf
open -a /Applications/TextEdit.app index.html

  The second example opens the document in the application that is 
associated with it, the third example explicitly gives an application 
to use.

  8.3 Copy and Paste

Copy and Paste generally works between the Aqua and X11 environments. 
There are still some bugs. Emacs is reported to be picky about the 
current selection. Copy and paste from Classic to X11 doesn't work.

  Anyway, the trick is to use the respective methods of the environment 
you're in. To transfer text from Aqua to X11, use Cmd-C in Aqua, then 
bring the destination window to the front and use the "middle mouse 
button", i.e. Option-click on a single-button mouse (this can be 
configured under XDarwin's Preferences), to paste. To transfer text 
from X11 to Aqua, simply select the text with the mouse in X11, then 
use Cmd-V in Aqua to paste it.

  The X11 system actually has several separate clipboards (called "cut 
buffers" in X11 speak), and some applications have weird views which 
one should be used. In particular, pasting into GNU Emacs or XEmacs 
sometimes doesn't work because of this. The program autocutsel can help 
here; it automatically synchronizes the two main cut buffers. To run 
it, install the autocutsel Fink package and add the following line to 
your .xinitrc:
autocutsel &

  (Make sure it's before the line that exec's the window manager and 
never returns! Don't just add it at the end, it won't be executed.)

  If you are using Apple's X11, then you can use Command-C or 
Edit->Copy, as usual for Mac apps, to copy text to the clipboard, and 
the middle-mouse button or Command-V to paste from the clipboard to 
Apple X11.

In any case, if you encounter problems copying or pasting from Aqua to 
X11, or from X11 to Aqua, you may first try to do the pasting part 
twice (it may happen that the copy does not occur at once), then use 
intermediate applications, e.g. TextEdit or the Terminal.app on the 
Aqua side, nedit or an xterm on the X11 side. In my experience, there 
is always a solution.

And maybe something on X11Forwarding?

Michèle
<http://micmacfr.homeunix.org>