Tech notes

March 6, 2007 • 1 min read • Technology

Command line rpm and SuSEconfig

After you run the rpm command from the command line, you always should run the SuSE config command in order to update the SuSE configuration files.

March 6, 2007 • 1 min read • Technology

Changing userid on Mac OSX

1.

January 28, 2007 • 1 min read • Technology

Find and replace with perl

To replace the string jeltsch.blogspot.com by the string mnm.no-ip.com/blog you can use perl:perl -pi.bak -e 's|jeltsch.blogspot.com|mnm.no-ip.com\/blog|g' .html If you want to do a recursive replacement on a directory tree you can try:perl -pi.bak -e 's|jeltsch.blogspot.com|mnm.no-ip.com\/blog|g' find jeltsch.org -name '.html'
The greatest discovery

January 24, 2007 • 1 min read • Technology

The greatest discovery

Look at the image gallery!

December 23, 2006 • 2 min read • Technology

Shell script to downsample podcasts

I have a very basic mp3 player with only 128 MB memory.

December 23, 2006 • 1 min read • Technology

Creating and mounting iso images (CD image files) under linux (dd)

Creating and mounting iso images under linux is very easy.Creating:dd if=/dev/cdrom of=filename.isoMounting:sudo mount -o loop -t iso9660 filename.iso /mnt/isoThe file endings iso, raw and cdr denote all iso files.

December 20, 2006 • 1 min read • Technology

Manually creating an encrypted partition without yast2 (fdisk, mkreiserfs, losetup, twofish, cryptotab)

There is an article in the knowledge base, but here in short:

December 16, 2006 • 1 min read • Technology

How to backup mysql databases (mysqlhotcopy, mysqldump)

There are different possibilities.
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Biochemistry/Molecular biology researcher and teacher