How to Edit and Run a Simple Ruby Script in Ubuntu 10.10

Peter Cooper demonstrates how to use the default text editor (gedit) in Ubuntu 10.10 Linux as a basic editor for Ruby files and then how to run a Ruby script at the Terminal.

Category:

Science & Technology

Tags:

• ruby
• ruby1.9.2
• rvm
• ruby 1.9
• ruby 1.9.2
• linux
• ubuntu
• screencast

[bigbold2]

@virumoz I'm not really into running with warnings personally, but thanks for sharing that as some people will find it useful/interesting.

[virumoz]

One recommendaton -- make it a habit to invoke your Ruby scripts with the »-w« option, like so:

ruby -w testscript.rb

This way you won't miss any suggestions or warning the Ruby interpreter might have for your script, e.g. ambivalent syntax (which happens in some situations where whitespace and/ or missing parens are involved).

Alternatively, you can prepend a so-called »shebang« as the first line in your Ruby scripts and add the »-w« switch there (i.e. #!/usr/bin/ruby -w).