[alrs]

ruby1.9.1 on Debian isn't ruby 1.9.1.

The Ruby language changed between 1.9 and 1.9.1, so a new package name had to be created.

If 1.9.1 was just called "1.9" it would break all of the packages in Debian that depend on whatever language features were different between 1.9 and 1.9.1.

"ruby1.9.1" in Debian 7.0 provides version 1.9.3.194.

[axomhacker]

The OP's output looked more like rbenv's output though, right? How did you figure that to be debian's message?