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  1. Migrating OwnCloud from SQlite to PostgreSQL


    Introduction

    SQLite is not a real database system. It’s more like a big file of text. Using SQLite to manage any kind of system can be dangerous when your database grows. The best advise is to loose a bit more time to learn how to set up a real ...

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  2. Installing Movim on PostgreSQL


    Introduction

    Do you know Movim? You should take a look if you’re interesting in social network that are trying to take care of your privacy. With it, you own your data.

    OK, that’s great… but that means that you must install it on your server. Let’s do ...

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  3. Generate slides from DocBook


    Introduction

    I’m a big fan of LaTeX. However, when it comes to details, LaTeX is not what it sells you: you can’t really separate the content from the display when you need something nicer than the default. Moreover, the semantic description of parts of the content in LaTeX ...

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  4. Screen backlight problem after suspend on Arch


    Introduction

    On Arch, it seems that there are often problems with the screen backlight. For example, I had a problem when suspending my computer with an almost discharged battery. When I plugged my computer, it was fully discharged. Trying to restart it from suspend didn’t display something on my ...

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  5. Transform portrait to squared image by filling


    Introduction

    This is my problem. I have a photo (portrait.png).

    Portrait

    From this photo, I need a squared image. However, taking the largest possible croping, this is what I can get.

    Portrait cropped

    Of course, I don’t want the face to be cropped like this. The following article is presented one ...

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  6. Connect Firefox OS device to Arch Linux


    Introduction

    Firefox OS, what is that? If it’s your question, this article is probably not for you. You may take some information on Wikipedia.

    Now, you know. So, Firefox OS (or Boot2Gecko or B2G) is developed in HTML5 (by HTML5, I mean HTML5+CSS3+ECMAScript/JS). This is a ...

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  7. Display notifications with IRSSI


    Introduction

    Since a few months now, I used irssi as my IRC client. I like it because it is highly configurable and because it’s CLI. However, one thing is a bit annoying about irssi: it has no notifications when somebody talk to me. Either it is some ping on ...

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  8. Patch a dependency of Maven


    Introduction

    The other day, I was using a XWiki instance to make some crazy things (using XWiki in a way that is not the default). My point was to use the functionalities of creating subwikis. No specific configuration of XWiki after that point: Apache Tomcat v7.0.47, HSQLDB (embedded ...

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  9. Displaying dates and time in Gnuplot


    Introduction

    When you need to display some specific data in Gnuplot, it may be hard. However, for dates, it is easy, there is already a functionality.

    For example, if you want to display date and hour base on a timestamp you have in your data, you can and that is ...

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