Notes on Ubuntu (Linux) computing

Brief notes on installation, setup and other tasks in the Ubuntu world

Archive for November 2012

Pandora with scrobbling to last.fm on Ubuntu 12.04

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I will try out Pithos to listen to Pandora radio and scobble tracks at last.fm — this tool is designed to do that in the Linux environment. Install using the PPA, as described at the website:

sudo add-apt-repository ppa:kevin-mehall/pithos-daily
sudo apt-get update
sudo apt-get install pithos

Installed and tested it out using accounts at pandora.com and last.fm — everything seems to work. There is nice integration into the Ubuntu music environment and data seems to be getting to last.fm — nice.

Written by Chris S

November 27, 2012 at 2:18 am

Install IPython notebook in Ubuntu 12.04

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IPython allows for the use of Python in a way that is interactive (similar to matlab or mathematica), allowing for the creation of nice tutorials and examples — really I am talking about the html notebooks. In Ubuntu 12.04, the install should be simple (I will not install from source), using the repository version to find all dependencies:

sudo apt-get install ipython-notebook

To start an html-notebook session with inline graphics, use

ipython notebook --pylab inline

Written by Chris S

November 14, 2012 at 12:01 am

Posted in Python, Ubuntu 12.04

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Install and use screen in Ubuntu 12.04

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screen is a nice tool for those who use the terminal for much of their work. Installation is simple:

sudo apt-get install screen

Some useful (basic) commands are:

screen -S <sessionname> # create session with name 'sessionname'
screen -ls              # show current screen sessions
CTRL-a d                # detach from screen session
screen -r <sessionname> # re-attach to 'sessionname'

Once in an attached screen window, useful commands are:

CTRL-a c                # create a new window/terminal
CTRL-a A                # name the window/terminal
CTRL-a "                # list all windows and select to switch
CTRL-a n                # cycle to next window/terminal
exit                    # exit from the current window/terminal

Written by Chris S

November 13, 2012 at 11:22 pm

Install Quod Libet in Ubunut 12.04

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Quod Libet is simple music player, tool for tagging musics files, etc. Install the repository version using

sudo apt-get install quodlibet

Written by Chris S

November 9, 2012 at 6:35 pm

Posted in Uncategorized

Install Geany 1.22 on Ubuntu 12.04

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Update 2013-04-11: I recently started to have `partial upgrade’ issues with this ppa (it seems like the plugins did not build for 64bit machines). This caused update issues with other, more important parts of Ubuntu. As a result, I removed geany, geany-plugins and the ppa. I would carefully investigate before using the ppa.

In a previous post I installed Geany from the repository. A new version is available with plugins — I will install using the details described here and here for the plugins (and color schemes, if desired).

Note: I removed the repository version of Geany before the install — you only need to do this is you have already installed an earlier Geany version. The remove command with apt-get is (this removes the application while preserving the configuration files)

sudo apt-get remove geany

The following commands will add the ppa and install Geany along with the plugins:

sudo add-apt-repository ppa:geany-dev/ppa
sudo apt-get update
sudo apt-get install geany geany-plugins

Written by Chris S

November 9, 2012 at 6:09 pm

Install PyMC on Ubuntu 12.04

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PyMC is a nice Python package for implementing MCMC sampling in Bayesian inference. I have used this package on a variety of projects in Ubuntu 10.04lts and will provide my notes on how to install the development version from the github repository. This is important for me because I have found a variety of instances where I needed the latest PyMC version to accomplish particular goals.

To start, make sure some dependencies are installed:

sudo apt-get install python-dev gcc gfortran

If, like me, you already have many Python packages installed you will have some or most of the above installed. Next, cd to a directory where you would like to keep the PyMC git repository on your machine and clone the repository:

git clone git://github.com/pymc-devs/pymc.git

Finally, compile and install

cd pymc/
sudo python setup.py config_fc --fcompiler gfortran build
sudo python setup.py install

Written by Chris S

November 5, 2012 at 5:33 pm