Appendix D. Ruby and Rails Development Software
To program Ruby, you will need a Ruby interpreter and an editor or IDE. This appendix lists the primary sources of Ruby and Rails development tools.
IDEs and Editors
Some Ruby programmers like to use simple text editors and run programs from the command line; others like a fully integrated IDE with built-in debugging. Here are some possibilities.
3rdRail
http://www.embarcadero.com/products/3rdrail/
This is a commercial Rails-centric IDE for Eclipse. It currently supports Rails 1.x and 2.x only.
Aptana RadRails
http://www.aptana.com/products/radrails/
This is a free Rails-centric IDE for Eclipse.
NetBeans
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