Archive for April 2009
On my laptop I'm running Ubuntu Linux 8.04 with
XFCE 4.6 and it works great. But (Isn't there always a
'but'?) every once in a while I killed my Xsession with some type of key
combination. The standard combination for this is Ctrl-Alt-Backspace so I
switched that off in the file /etc/X11/xorg.conf'.
I added theServerFlags` section, like this.
Section "ServerFlags"
Option "DontZap" "on"
EndSection
After restarting I tried the dreadful Ctrl-Alt-Backspace and I thought that
'Bob's your uncle'.
Read more »
Last week I saw a documentary about the German mathematician
David Hilbert.
This very interesting documentary had some nice mathematical
problems that seem impossible to solve, but when thought through
there always was a little loophole.
A very nice one is The paradox of the Grand Hotel
If you are a bit into maths, this really is stuff to read.
The prove of
The Last Theorem of Fermat
is my next goal... 
I've been using IceWM on and off for many years now.
And because we used it in our UNIX/Linux education environment I did create
some patches for IceWM. Some of these patches are now part of the mainstream
version and (of course) some are not.
My patch files can be found here.
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I did take a lot of care to make this site W3C compliant, but a little
bug entered the code. This spoiled it and W3C give me 48 errors.
Of course that's too much. A little debugging session showed the problem
and now I'm W3C again.
Have a look at the
W3C Validation Service
As you might know, this site is created with Nanoblogger and
Markdown. This setup works nice and almost completely as I want
it.
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Miek pointed me to a nice plugin for
Nanoblogger called
the Code Plugin
Some nice examples:
#include <stdio.h>
int main( int argc, char* argv[] )
{
/* A Hello world example */
(void) printf( "Hello, World!\n" );
return 0;
}
and
#!/bin/bash
# A Hello world example
echo "Hello world"
If you want to cut and paste code examples, just go into vi and
give it a
A couple of days ago I posted that I was converting to git. Well,
that was not the completely truth. I already had switched to git.
But what I didn't like was the fact that git doesn't support
keyword-expansion and therefore there's no way of knowing what version of the
file you are editing. I do like this in CVS and SVN, so I implemented it
in a script called vigit.
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Some time ago I decided it was time to change from subversion to git for my
version control system. The advantages where obvious. git is distributed and so
I can code on my laptop without being connected to my home server. When I do
get home I just sync the repositories and everything's OK.
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When using a MySQL database, it's often very useful to create
backups of the databases.
This can be done with the MySQL dump command, but this does not
allow for separate week, month and year backups. On the web I found the
tool automysqlbackup
and that did almost what I wanted. I changed it a lot and my version can
be found here or here.
In my daily working routine I do create a lot of shell scripts, LaTeX source
and whatever. I always try to keep things simple and consistent. This not
always being easy, so I wrote a Perl program that generates a standard
template for a lot of standard code. This could be e.g. Bash shell, Perl, RPM
spec file, LaTeX source, C source, etc.
Read more »
