What made the `ls` command available on Windows? (IronRuby and Rails Installer.)

Question

I'm completely new to Ruby (and thus Rails) and I'm going through Hartl's second edition. Sorry in advance to ask such a novice question; I'm really inexperienced with Windows command-line.

I'm confused by the fact that the command-line session that I used to get through the basics (bundle install, git, Heroku, etc.) "knows" the ls command, but a new command-line session doesn't.

Exactly which step between Rails Installer (Windows) and the end of chapter 1 made that tool (and I imagine other UNIX-like commands) available?

I'd which ls on my original session but of course...

Answer 1

The ls command is distributed together with the other basic linux cli tools in the git bundle and located in RailsInstaller\Git\bin