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My random knot in the Web

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  1. Laptop repair

    In November my four-year old laptop started acting up. First it shut itself down a couple of times when doing heavy calculations. Later the screen started showing artefacts in text mode and would hang the X server. I bought this machine from BTO because they offered quite a lot of ...

  2. genbackup

    This shell-script makes a backup (with the tar program) of the directory from which it is called, with all its contents. It is one of the smallest scripts I've ever written but I've found it really useful to make fast complete backups of e.g. source archives.

    The ...

  3. Switching to the vim editor

    After having been an emacs user for a long time, I was starting to grow disenchanted with it around version 24. My main problem is that it was starting to get really slow. Not just in starting up, but also in daily use, specially it you kept an instance open ...

  4. Chickpea and vegetables stew

    This is a variation on a recipe that I found in a cookbook, because some of the ingredients in that cookbook aren't in season right now.

    The ingredients I used were:

    • one can of chickpeas (400 g)
    • one can of diced tomatoes (400 g)
    • 250 grams of French beans ...
  5. Making my first EPUB

    Now that I got an EPUB reader, I started looking for a way to make EPUB documents.

    In principle, an EPUB file is a zipfile with a certain layout, as can be seen on the wikipedia page linked above.

    The actual contents are just XHTML, while the metadata files are ...

  6. Filtering a sound recording

    Recently I was listening to an MP3 file of a talk about no-till gardening when I noticed that there was a noticable buzz in the sound. I figured I would try my hand at sound filtering with Python as a learning experience.

    The Python standard library doesn't have a ...

  7. Automated local backups

    These days it is commonplace to have hardware or software RAID1, even in common PCs. In previous machines I've used ataraid to implement RAID1.

    The advantage is that every write is recorded on two disks at once, minimizing the chance of data loss. The flip side of the coin ...


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