Installing FRCSim With A Script (Ubuntu)
The fast and easy way to setup FRCSim. I strongly recommend the manual install, because you will learn more and possibly avoid bugs in the script.
Please note, this only works on Ubuntu 14.04, and for other versions/systems please look at the manual install.
Open a Terminal
In Ubuntu, you can use Ctrl+Alt+T. Or, simply search for it in the sidebar.
Download And Run The Script
1. Copy the following command
wget -O frcsim-installer.sh first.wpi.edu/FRC/roborio/release/frcsim-installer.sh && chmod a+x frcsim-installer.sh && ./frcsim-installer.sh INSTALL
2. Paste in to the terminal
3. Hit enter
Install Eclipse Plugins
You'll need to install the usual WPILib Eclipse Plugins. Instructions for doing so can be found here:

When verifying the installation by attempting to simulate GearsBot I receive the following:
BUILD FAILED
/root/wpilib/java/current/ant/build.xml:164 /root/wpilib/simulation/jar does not exist
Any ideas? This happens from root or usr