Ruby Interpreter

The Ruby Interpreter is required in order to use:

• MRvcmt, a graphical user interface (GUI) to the configuration management tool (CMT)

• FRED, the GLAST event display tool

Windows

1. If you have a Windows machine, download the Ruby Interpreter using the one-click installer at http://rubyinstaller.rubyforge.org/wiki/wiki.pl.

Troubleshooting Tip – Windows machines only; does not apply to Linux: At the time this was written, some of the later versions of Ruby caused a failure of FRED to launch automatically after running Gleam. The procedures in this section were run using Ruby 1.8.2-15, and it is strongly recommended that Windows users use this version. These earlier versions of Ruby can be downloaded from the RubyForge website.

2. Test your Ruby Installation as follows:

1. Open a DOS window.

2. At the DOS prompt, enter:

   ruby --version

Your installation was successful if you see something similar to:

ruby 1.8.2 (2004-07029) [i386-mswin32]

Linux

If you have a Linux machine, the Ruby Interpreter utility should already be installed on your system. To verify, enter (from the command line):

ruby --version

• If ruby is installed, the response will be similar to:

jrb@noric13 $ ruby --version
ruby 1.8.1 (2003-12-25) [i686-linux]

• If ruby is not installed:

1. Download the Ruby Interpreter from the Ruby website and uncompress it.

2. To install it, enter:

./configure --prefix=myInstallDirectory

(where "myInstallDirectory" is an absolute path)


> make
> make install

3. To make it accessible for csh or tcsh shell, enter:

setenv PATH ${PATH}:myInstallDirectory

Note: Make an analogous path for the bash shell.