1. Gnuplot graphic with 2 different scales

    Introduction

    Gnuplot is a nice tool to create graphics. However, sometimes, we need more specific functionalities we may think Gnuplot does not have. A deeper look into Gnuplot functionalities show us that it is a very powerfull tool!

    Yesterday, I needed to create a graphic with 2 curves on it …

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  2. Replace multi-lines pattern with sed

    Introduction

    Let’s define this problem by an example. This is the kind of text I want to modify.

    # include <stdio.h>
    void main(int argc, char ** argv) {
    	printf("Hello world!\n");
    	printf("Version 2.0\n\
    			You can use this program as you want.\n");
    	return 0;
    }

    This is …

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  3. 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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  4. 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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  5. 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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  6. 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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  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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