Posts Tagged ‘Ubuntu’

With Docker, you can specify the command to run inside the container on the command line. But what if you want to run multiple commands? You can’t escape the && syntax, or wrap the command in quotes, as Docker won’t recognise it. The trick here is to use sh -c ‘<command1 && command2 [&& command3 […]

Japanese, like many other Asian languages, is written using a variety of symbols which are not found in the standard ASCII table. Fortunately, you can include these symbols in LaTeX documents using the CJK package. In ubuntu this can be installed via the sudo apt-get install latex-cjk-japanese command. I’m not sure about Windows, Mac or […]

The Amazon Kindle is a great little device which stores it’s documents unencrypted and unhidden on it’s hard drive, just like you would on your PC. This means you can add and remove documents as though it was a USB drive. It’s that easy. But on Ubuntu when you plug it in, nothing happens. The […]

Sometimes in a terminal you want to strip out the first line of output from a command. For example, you may want to generate a list of users which have tasks running using the ps command. This command puts a header at the top of the output. You can remove this header by piping the […]

This is a very specific post about using the £8.97 VGA webcam from Tesco with Ubuntu 10.04, namely with Skype. These instructions might work with other webcams and/or other linux distros, but I have not tested this personally. If this does/doesn’t work for your webcam/distro combination then please leave a comment describing your experiences. Okay, […]

There are a number of ways to convert CDs into MP3s in Ubuntu. For me, the best choice is Sound Juicer because of it’s filename flexibility and ability to deal with compilations. Setting it all up is also very simple. Only two packages are required from the repository. They can be installed with the following […]

Ever jumped onto an Ubuntu server somewhere without knowing which operating system version it’s running? You can find this out with one simple command: lsb_release -a This will provide output like: Distributor ID: Ubuntu Description: Ubuntu 9.10 Release: 9.10 Codename: karmic

Pausing processes in ubuntu

Posted: 6th June 2010 by Tim in Ubuntu
Tags: , , , , , ,

There are times when you want to pause a process and continue it later. For example, when a process is using all the computer’s resources and you need to access something or execute something else. This can all be done via the kill -STOP and kill -CONT commands. First you need to grap the pid […]

Some mail servers require you to connect on a certain port. Evolution (the default mail client for the gnome desktop environment) doesn’t have a setting for the server port number. You can set this by adding :[port_no] to the end of the server address. For example, to use the mail server on port 587, […]

Mounting ISO files in Linux

Posted: 24th April 2010 by Tim in Ubuntu
Tags: , , , , , , , ,

One of the niceties of linux distros like Ubuntu is that you can ‘mount’ ISO files. An ISO file, or ISO image, is an archive of a CD or DVD. By mounting an ISO file, you can read the data as though you inserted the CD into your computer. Ubuntu will even regard it as […]

If you’re getting a FATAL: Ident authentication failed for user [username] Error when attempting to connect to postgres as a specific user, chances are you need to change some security settings. Postgresql, by default, only allows you to connect to postgres if the postgres username is the same as your username on the operating system. […]

The learning curve for LaTeX documents can be a steep one. This step-by-step guide covers installing and setting up the LaTeX environment, and creating and compiling your first document so that you can read and distribute it. Setting up the LaTeX environment A few things need to be installed before we can start creating documents. […]

Playing DVDs in Ubuntu

Posted: 31st December 2009 by Tim in Ubuntu
Tags: , , , , ,

Unfortunately, you cannot play all DVDs in Ubuntu out of the box. Some packages need to be installed manually due to legal issues in some countries. If you find yourself getting errors like VLC is unable to open the MRL, chances are this is your problem. It’s a simple fix (paste this into a terminal/console): […]

MySQL comes with a library to make talking to MySQL with C easyish. There are a few things you have to install first, though. I’m using Ubuntu 8.04 for this walkthrough, but things should be similar for other flavours of Linux. Before we start, we have to download the development files required: sudo apt-get install […]

Getting MP3s working on Amarok

Posted: 26th July 2009 by Tim in Ubuntu
Tags: , , , ,

Amarok, by default, does not come with the MP3 codecs installed. This is for a variety of reasons that I’m not going to go in to here. To get MP3s working in amarok, or to listen to internet radio, you need to install the libxine1-ffmpeg package. In ubuntu, that means doing the following: sudo apt-get […]

Let’s be honest – the operating system provided by Asus on the eee PC 701 is a bit rubbish. Sure, the games are fun, but for people like me who like to do ‘advanced’ stuff like using a terminal it just doesn’t cut it. Solution: eeebuntu. Eeebuntu is basically ubuntu (with gnome) which has been […]