How to debug ruby code?

Question

I run Ubuntu 10.10. I just want to debug a simple script. After spending half a day trying to figure out how that could be done I give up. What the heck am I supposed to do?

Answer 1

1. In Ruby:

   ruby -rdebug myscript.rb then,

   • b : put break-point
   • and n(ext) or s(tep) and c(ontinue)
   • p(uts) for display

2. In Rails: Launch the server with

   • script/server --debugger

     and add debugger in the code.