Commands tagged X

in Cygwin, start X server fullscreen ...

For openGL, check here:

http://www.cs.utoronto.ca/~wongam/d18_cygwin_opengl_setup/cygwin_opengl_setup.html

ssh compresion -C option ...

on slow connection VNC performs better but in local LAN native secure X protocol is an option

This forces X back to its maximum resolution configured. To get a list, type `xrandr'.

change keyboard layout in X

when using Gnome or KDE, you will have a hard time getting a screenshot of something like a login screen, or any other screen that occurs before the desktop environment is up and monitoring the printscreen key. (this probably applies for other DEs as well, but I haven't used them)

What this command is meant to do is take a screenshot of an X window using a command you can run from your virtual terminals (actual text terminals, not just an emulator) To do this:

Press CTRL+ALT+F1 to go to a virtual (text) terminal once your login window comes up

Login to the virtual terminal and enter the command (you'll have to type it in)

You should now have a file called screenshot.png in your home directory with your screenshot in it.

For those of you who are new to the virtual terminal thing, you can use CTRL+ALT+F7 to get back to your regular GUI

From http://www.gnome.org

There are different ways to run X, I prefer to run it without xdm/gdm. The problem is you can't lock X because one can press Ctrl+Alt+F1, press Ctrl+Z and kill you X locking process. Of course you can disable Ctrl+Alt* or Ctrl+Alt+Backspace keys, but it's inconvinient if you really need to switch into console.

This will save your open windows to a file (~/.windows).

To start those applications:

Should work on any EWMH/NetWM compatible X Window Manager.

If you use DWM or another Window Manager not using EWMH or NetWM try this:

Set up X forwarding in PuTTY, with X display location set to :0.0

Launch PuTTY ssh session.

Launch Xming. Make sure that display is set to :0.0 (this is default).

will insert the string into the windows cut and paste buffer.

Thanks to Dennis Williamson at stackoverflow.com for sharing...

When you run an X program from a terminal you can see any errors. But when it's run from another X program (eg from a menu item, from your fluxbox 'keys' file etc) it might just die and you see nothing (except perhaps in .xsession-errors). Instead, launch it via this command and you'll see the termination status, stderr and stdout.

eg: "xlaunch firefox" or "xlaunch 'echo stdout; echo stderr >&2; false'":

'echo stdout; echo stderr >&2; false' failed with error 1

STDERR:

stderr

STDOUT:

stdout

That works in all softs, CLI or GUI... I don't want to waste time to all the time typing the same stuff . So, I have that command in my window manager shortcuts ( meta+l ). All the window managers have editable shortcuts AFAIK. If not, or you don't want to use it that way, you can easily use the xbindkeys soft.

I you're using kde4, you can run :

then open "inputs actions" and create a new shortcut.

For Gnome take a look there : http://www.cyberciti.biz/faq/howto-create-keyboard-shortcuts-in-gnome/

A more advanced one, with strings and newlines :

For complicated or long paste, you can feed xvkbd with a file :

You can simulate ^C ( control+c ) too or others combinations of keys :

There's no man page nor help ( On my Archlinux distro ), but you can see online doc there : http://homepage3.nifty.com/tsato/xvkbd/

This starts a very basic X session, with just a simple xterm. You can use this xterm to launch your preferred distant session.

Try also startkde or fluxbox or xfce4-session.

To switch between your two X servers, use CTRL+ALT+F7 and CTRL+ALT+F8.

This is a (last resort) way to automate applications that provide no other ways for automation, it would send 'Hello world' to the currently active window. See the manpage (and the -text and -window entries) for how to send special characters and target specific windows.

An example:

Using xwininfo, I get the id of my XPlanet background window:

alanceil@kvirasim:19:51:0:~> xwininfo

xwininfo: Please select the window about which you

would like information by clicking the

mouse in that window.

xwininfo: Window id: 0x3600001 "Xplanet 1.2.0"

Absolute upper-left X: 0

(..etc..)

Now I use xvkbd to tell it to close itself:

xvkbd -xsendevent -window 0x3600001 -text "Q"

Obviously, the best way is to put these commands in a shellscript - just make sure to include a short sleep (sleep .1 should suffice) after each xvkbd call, or some programs will become confused.

Requires: imagemagick and graphviz

On Debian systems, displays a graph of package dependencies. Works also with other image formats, like svg :

Have you ever had to scp a file to your work machine in order to copy its contents to a mail? xclip can help you with that. It copies its stdin to the X11 buffer, so all you have to do is middle-click to paste the content of that looong file :)