Err.... http://www.ruby-doc.org/
"What do you use for Ruby on Rails?"
Textmate. :-)
BTW, you might want to have a look at JRuby. While it's still pre-1.0, it's moving along nicely. It will allow you to leverage all your knowledge of the Java class libraries.
"But I have the impression that many people who bash Java don't really know it."
Interesting complaint from someone who just bashed Perl and almost certainly doesn't know it well.
I am not saying that there can't be valid reasons for hating Java. I just think most of the times it is rather the specific frameworks than the language itself that pisses people off. For example I can't bring myself to write EJBs - having to create 5 files just to be able to call a method remotely exceeds my pain tolerance. Yet in many big cooperations someone up in the management chain has decided that every Java Application has to use EJBs. That I hate, too. It's misleading to judge Java based on that perversity, though - EJBs are just a framework written in Java, not the Java programming language.
Anyway, out of curiosity, is Perl still relevant today? Why would people choose Perl over Python or Ruby?
From your description it sounds like you were frustrated by coding horrendous Perl and instead of learning it you moved to a language with training wheels. I'd rather just fall a few times while I'm learning so I can go much faster afterwards.
"Why would people choose Perl over Python or Ruby?"
It's fast in productivity and performance. There are great books. It's on every Unix machine. CPAN still reigns supreme as the ultimate library repository. These days there's some great frameworks for web development, my favorite being Catalyst with DBIx::Class and Template Toolkit.
Ruby is mostly just Perl without all the mental baggage of people seeing bad Perl code for years. The way a restaurant might avoid saying "squid" and instead say "calimari" -- it sells a lot better.
Also whenever I take on a new programming contract, I just start the computer the company provides me with, download the Java documentation and off we go.
Fad paradigms: no, but I know that if I need something, someone has already written a framework for it.
You're moving from a verbose, bloated, over-engineered system to a terse and simple system. I think you're looking for something that doesn't exist because it's not how Ruby programmers work -- they use a language small enough to actually keep in your head and that's a huge part of the productivity to be had.
My ride with RoR hasn't been smooth so far. Far from having my first web app running within minutes. Instant Rails didn't work at all, and I spent hours trying to find a database driver for MySQL for Ruby. It's all very confusing. I suspect there is already a database driver bundled with RoR, but how would I know (documentation, where are you)? Googling only led me to some strange page where you could compile your own driver from C source code (and with what compiler, if I am on windows), which presumably was in some kind of alpha stage.
At least with Java I know that there usually exists a stable and proven solution... The training wheel analogy was maybe not so bad at all: Java applications just tend to be more stable than the scripting stuff. And other than bikes with training wheels in the real life, Java is also faster.
You mean, as opposed to Perl, which doesn't work?
That's the most ridiculous thing I've heard on this forum.
I think Java still has a lot of things going for it, and my most favorite aspect is the documentation. I never spent a dime on Java books because there is so much excellent documentation available online (starting with the Java Tutorial for beginners). Compare that to Ruby, where you can't even get a specification of the current state of the language for free.
Also it seems most of the new developments in IT are being developed for Java first these days, like Aspect Oriented Programming, Dependency Injection and whatever (granted, maybe some of these things would be superfluous in other languages to begin with, I don't know). You get a really good IDE for free (Eclipse), and new add-ons and frameworks for Java are almost forced to also provide plugins for the IDE to work with. For LISP you are still supposed to use Emacs. What do you use for Ruby on Rails?
That said, it seems to me the problem with Java is not the language but the people using it. There is a lot of overengineering going on, that just isn't fun anymore. Many people (especially the bosses in the large corporations) have become dogmatic about certain ways to design applications, that are often inappropriate (in my opinion).
I also long for a faster way to prototype, and I am putting a lot of hopes on Groovy+Grails or even Ruby. But I have the impression that many people who bash Java don't really know it.