Hi NaHi :-)

In message "[ruby-talk:00448] Re: interactive ruby, debugger"
    on 99/07/10, "NAKAMURA, Hiroshi" <nakahiro / sarion.co.jp> writes:

>>   i(nfo)
>
>Gotoken-san, I couldn't find it in debug.rb in ruby/1.3.4-990625...
>Old spec? for example, in ruby-1.2 or younger?

Sorry, I misunderstood; 
There is `info break' only, now and then. 

>By the way, I made a patch since the action was more modeled on gdb.
>'list' command lists just 10 line.
>'list' command memorizes the line number listed before, for each target-file.
>'list -' for listing previous 10 lines.
>'list 0' does not cause error.
>'up' and 'down' puts the stack frame where you are.

It seems helpful. 
thanks!

-- gotoken