ruby - How do I elegantly install RVM on Ubuntu? -

i install rvm onto ubuntu 13.04 running distribution packaged ruby 1.9.3p194.

what should install rvm version use version of ruby? official website's installation directions not clear.

i might upgrade ruby later figured i'll start version included in ubuntu 13.04, rvm allow me safely use newer versions anyway.

in python, need issue one-liner , have virtualenv installed.

install current version of rvm. author , maintainers great job of keeping date , react bug reports quickly.

rvm's whole reason existence manage multiple rubies in own home directory's sandbox, not make easier manage system-wide, default version of ruby; won't make easier @ all. rvm allow access/use system ruby if necessary, have revert using traditional sudo commands modify things , if don't know permissions , when , why should tweak it, you're better off leaving things alone.

yes, rvm has lot of functionality in it, people few commands needed. in general you'll start rvm use some_version_of_ruby --default set initial/default version, switch other versions later using same command without --default. additionally rvm install some_verson_of_ruby how tell rvm install new.

installing rvm trivial, , single-line command. need read documentation though, figure out is. see people haven't paid attention they're doing , skip directions , flail about. isn't hard figure out, if you're @ familiar linux or mac os system.