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Linux Command: lsusb
The lsusb command lists the USB devices of the computer. Example: $ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub...
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Deleting Mathematica in Linux (Ubuntu)
If for any reason you need to un-install Mathematica, you should delete the files associated to it. If the installation was the usual one, follow the below steps. $ cd /usr/local $ sudo rm -r Wolfram...
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Change the prompt of the Linux Terminal
When I opened a terminal the prompt said myname@mycomputer:~$ which is nice. But after changing the directory to Folder/Subfolder/Subsubfolder, it got messy,...
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Linux Tip: Use of xargs
The command xarg is used to pass the standard output (of a previous command) as standard input to the following. Worked Example I want to delete all files in the current directory containing numbers in...
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Installing IPython in Linux (Ubuntu)
If you have programmed in Python, perhaps you would know IPython. IPython is an interactive shell for python programming. Installing IPython In the terminal (Ctrl+Alt+T), run the command line $ sudo...
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Installing CalcHEP on Ubuntu
In order to install CalcHEP, one needs to download the code and to compile it. The code can be found at http://theory.sinp.msu.ru/~pukhov/calchep.html, as usual it is recommended to download the...
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Using CalcHEP (1)
After installing CalcHEP (see this post), oen should go to the working directory created by CalcHEP and running the program, $ cd ~/Documents/WorkCalcHEP $ ./calchep Then the CalcHEP shell will appear,...
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My coins collection
A long time ago, my childhood’s best friend (Alejandro) show me his coins collection. Until that day, I just save a few coins… but never had realised that one could collect them. Thus, I started...
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LaTeX tip: \allowdisplaybreaks
A quick tip: When writing a long aligned equation, use the following command, \allowdisplaybreaks in the preamble. Example \documentclass{report} \usepackage{amsmath} \usepackage{lipsum}...
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Emacs Tip: Using Macros
Yesterday I started to edit an old file, and it happened that in my set of definitions I changed a bold math-operator with no arguments \df, by a math-operator with one argument (which happens to by...
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Linux TIP: Installing Skype 4.2 on Debian
According to this post, the instructions to install the latest Skype on Debian are $ sudo dpkg --add-architecture i386 $ sudo apt-get update $ sudo apt-get upgrade $ sudo dpkg -i...
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Emacs tip: Global indentation
Global Indentation In order to get what people like to call smart indentation on Emacs, the easiest way is to add a couple of lines to the .emacs configuration to declare that every newline should be...
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Installation and Upgrade of LMDE (Linux Mint DEbian)
Hello there! Yesterday I installed Linux Mint DEbian (or LMDE) on one of my machines. If you check the Blog Website, the last released version was the 201303. From last March until now, a lot of...
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aptitude: Packages code keys
Hello everyone, Before I install packages, I’d like to check their status using aptitude, $ aptitude search gimp p extremetuxracer-gimp-dev - plugins for GIMP for easy development of e i gimp - The GNU...
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Discriminación y Censura a @marcelclaude en Radio, Tv. y Red. Social......
Reblogged from BLOG DE PATRICIO BRAVO 2013: Periodistas que no pueden hablar de la candidatura de Marcel Claude y de la cantidad de asistentes al cierre de campaña , debido a instrucciones de...
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2013 in review
The WordPress.com stats helper monkeys prepared a 2013 annual report for this blog. Here’s an excerpt: The concert hall at the Sydney Opera House holds 2,700 people. This blog was viewed about 25,000...
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My personal Cadabra
Goal: a cadabra notebook more LaTeX friendly. I run a Debian system. Don’t know why, but the original source code in the git repo didn’t work!!!What did I do? I downloaded the code from the Debian...
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Missing feature of LaTeX/Cadabra ???
Just by playing around with CADABRA, I found out the existence of a super-useful LaTeX package, called breqn, which allows to break long equations at the edge of the page… like the wraping feature of...
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CADABRA reversed script
On a previous post I described how to change the LaTeX options of the Cadabra notebook. I collaborate with a colleague, who uses the standard cadabra installation. Therefore, If I write a Cadabra...
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Carta abierta a Rubén Blades
Fecha: 23 de febrero de 2014, 14:34 Asunto: Re: carta a Rubén Blades (versión última) Carta abierta a Rubén Blades Señor Cantautor: Comenzaré por decirle que ésta es la segunda vez que le escribo....
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