Install OpenSSH Server: sudo apt-get install openssh-server To check if the server is running you should get no...

Although you can access many symbols using the AltGr key you may be missing some, like the en-dash (–) or...

This note is a reminder that there is something called AppArmor that could cause weird errors ("File not found", "Can...

To open a terminal quickly navigate to System → Preferences → Keyboard Shortcuts. There, click the "Run a terminal" row (It should...

When you need to bulk rename files you can not call "mv *.foo *.bar" to change the extension of all...

To list the name and version of your Linux distribution, type the following: cat /etc/*-release

If you're on Ubuntu: sudo apt-get install ruby-dev On other platforms: Look for a package containing ruby...

This card explains how to install RubyMine for the first time. If you want to upgrade an existing RubyMine installation...

If your pidgin IM fails to connect to ICQ, you may need to update it. The ubuntu default sources are...

This note describes how to setup a box running Ubuntu to share its Internet connection with another PC.

When doing a presentation you may want to hide your desktop icons. You can switch them off (or back on...

If you previously used version 2.x of Thunderbird and upgraded to 3.x (for example through an Ubuntu release...

You need to install the following packages before you can build the Nokogiri gem: sudo apt-get install libxml2-dev...

If you get an error message like that you are missing the Aspell files a specific language:

You need to install the following packages before you can build the Paperclip gem: sudo apt-get install imagemagick librmagick...

Note that you should disable the Java plug-in in your browsers after installation. Ubuntu >= 12.04 Java 11

First of all: You could just use RVM which would make the pain go away. If for some reason you...

Update RubyGems and Passenger Bundler requires Rubygems >= 1.3.6. Run gem update --system if you have an older version.

Keyboard layout reverting to US on (every) reboot Cause: I found the same problem, but only on my wife...

Open the configuration file: gksudo gedit /usr/share/vte/termcap/xterm Find a line like this: :co#80:it#8:li#24:\

Ubuntu lets you mount an SSH shell into Nautilus from Places -> Connect to server (select "SSH" as server type).

This may be awkward to set up, but will work once you're done. Fun facts:

Basic configuration Please keep this config simple. It should be a starting point for new developers learning Git. [user]

In Ubuntu your ALT key is locked when you're working in VirtualBox. There are two workarounds for this: