How do I get ruby to print a full backtrace instead of a truncated one?

Question

When I get exceptions, it is often from deep within the call stack. When this happens, more often than not, the actual offending line of code is hidden from me:

Answer 1

IRB has a setting for this awful "feature", which you can customize.

Create a file called ~/.irbrc that includes the following line:

IRB.conf[:BACK_TRACE_LIMIT] = 100

This will allow you to see 100 stack frames in irb, at least. I haven't been able to find an equivalent setting for the non-interactive runtime.

Detailed information about IRB customization can be found in the Pickaxe book.