Other articles

1. Back online

   I've migrated the blog from wordpress to pelican. Static files, quite easy to use.

   The migration process went well. The pelican import tool is easy to use and my rst linter highlighted the few errors done by the import tools (mainly empty sections).

   There are still few artefacts due to …

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2. Seine flooding

   [caption id="" align="alignright" width="350" class="zemanta-img"] Seine, Paris, 1910. (Photo credit: Wikipedia)[/caption]

   On this mounth, the Seine decided to flood Paris and its neighborouds, so I took my camera to take pictures. I realised:

   I was not alone

   [caption id="attachment_2567" align="alignnone" width="250"] TV team …

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3. UTF8, base64 and other encoding conversion

   [caption id="" align="alignright" width="100" class="zemanta-img"] encoding conversion (Photo credit: Wikipedia)[/caption]

   A common way to represent binary files in ascii-only diplay is to use base64. This is also done a piece of software does not handle unicode: it manipulate its base64 representation.

   Let's take as example …

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4. GPG key renewal

   [caption id="" align="alignright" width="75" class="zemanta-img"] standard key (Photo credit: Wikipedia)[/caption]

   What happen when a PGP key expire? Obvious answer: you can no longer securely use it. Nevertheless, you may not delete it as you must be able to read your encrypted files.

   Basics step that should …

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5. loop devices

   

   Loop device (Photo credit: Wikipedia)

   Loop devices are used to acces any file as if it were a block device such as a disk. On GNU/linux, the canonical command to interact with loop devices is losetup. To list the next usable loop device: losetup -f

   disk image loop mount …

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6. awesome global shortcut

   [caption id="" align="alignright" width="200" class="zemanta-img"] Multimedia keyboard (Photo credit: Wikipedia)[/caption]

   The awesome window manager does not provide GUI configuration tool.

   Here is a litte how to to provide a feature using global shortcut, illustrated with wolume control.

   Defining and identifying the feature and the shortcut

   The …

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7. random unix notes (part II)

   [caption id="" align="alignright" width="75" class="zemanta-img"] Specific file descriptor (Photo credit: Wikipedia)[/caption]

   Few weeks ago, I wrote down about some unix tools. Here are some other multiple process using the same stdout/stdin file desricptor.

   file descriptor

   The 3 most used file descriptors are stdin, stdout and …

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8. Conference posters

   [caption id="" align="alignright" width="75" class="zemanta-img"] mindmap needing clarification (Photo credit: Wikipedia)[/caption]

   Few weeks ago, I wrote about mindmap in [latex]LaTeX[/latex]. Now I want to precise few ideas and to have all key ideas visible in one sight. I think the best layout is similar …

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9. quick and easy calendar

   

   Calendar (Photo credit: Wikipedia)

   A quick post to share something I was looking for for several month: a quick way to see a calendar.

   A simple tool using the command line interface is the `cal <https://en.wikipedia.org/wiki/Cal_%28Unix%29>`__ command that display a calendar in …

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