http://wolke23.at

Die letzten drei Monate lang habe ich im Rahmen des Sommer-Spezials 2010 von http://www.linux-community.de/ als einer von zehn Teilnehmern kurze Blogbeiträge zu GIMP und anderer freier Bildbearbeitungs- und Grafiksoftware verfasst. Das Ergebnis kann auf der Linux-Community online gelesen werden, meine Beiträge können auch hier gesammelt als PDF-heruntergeladen werden:

http://wolke23.at/files/gimp-erfahrungen-und-tipps.pdf (ca. 50 MB)

If formulas in your OpenOffice.org Writer documents are colored wrong on screen and on printouts, perhaps the following solution may help you. By the way, I experienced this problem on Ubuntu 10.04 with OpenOffice.org 3.2.

A workaround I used until I found out about the problem's real source, is to use color black { } ...

One way to trigger actions at an OpenSSH server login, is to use the sshrc file in your sshd configuration folder, usually /etc/ssh.

Use the following command in the sshrc file to send a mail:
mailx -s "$HOSTNAME Remote Login from $USER at `date`" mail@example.com

Of course every other command or notification method can be used too, ...

First of all, if you don't want to install the driver manually, search the openSUSE repositories for it, perhaps it is available by now, as of writing this (2010-07-18) it wasn't.

If you decide to do it manually, here is how it worked for me:

Download driver from http://www.nvidia.com/Download/index5.aspx. The downloaded file is named something like ...

I tried to enabled the default VNC server in openSUSE via YaST - Network Services - Remote Administration (VNC), but whenever I connected to the host via the OS X VNC Client JollyFastVNC, all I got was a black screen.

I double checked firewall and VNC server settings but everything seemed to be configured correctly. ...

Problem:
You have a text file with a link to a file in each line.

Your file linklist.txt may look like this although of course the links don't have to point to the same host, same document type or similar named files.

http://example.com/download/document1.pdf
http://example.com/download/document2.pdf
http://example.com/download/document3.pdf
http://example.com/download/document4.pdf
http://example.com/download/document5.pdf

Now you want to download them all but don't want to do this manually.

Solution:
One way ...

To add an existing user to an existing group from the command line use the following commands:

On Linux
usermod -a -G username groupname

On Mac OS X
dscl / -append /Groups/groupname GroupMembership username

One fast way to generate grayscale images named *.grayscale.png from multiple *.png images with ImageMagick is to use the zsh command for i (*.png) convert -colorspace Gray $i ${i%.*}.grayscale.png. If you want to override the existing images use for i (*.png) convert -colorspace Gray $i $i instead.

The zsh option short_loops has to be set ...

If you have problems loading Java (not JavaScript) powered Websites in Ubuntu 10.04 try to switch to another implementation.

At first you have to install the Java Flavors you would like to test. If you have no clue which one to try, Suns own implementation is probably a good starting point. Install it with apt-get ...

Viele Benutzer, die bestimmte Aufgaben des täglichen Computeralltags auf der Kommandozeile erledigen oder erledigen müssen, setzen dabei aus gutem Grund auf die Z-Shell. Auch wenn an anderen Shells - wie beispielsweise die auf vielen Linux-Systemen als Standard eingerichtete Bash - beginnen, zsh-Features nachzubilden, ist die zsh an vielen Stellen deutlich überlegen.

Das Anpassen der Z-Shell ...