Cannot recognize rails in ubuntu terminal, but in aptana terminal

Question

I followed this to install ror,

https://www.digitalocean.com/community/articles/how-to-install-ruby-on-rails-on-ubuntu-12-04-lts-precise-pangolin-with-rvm

after that, everything works fine(i think so),

but the strange thing is,

if i command rails in ubuntu terminal

it says install apt-get

however in aptana terminal,

it runs fine,

can i ask why it doesn't work in ubuntu default terminal?

do i have to setup some kind of path?

Answer 1

You need to change a few terminal profile preferences before you can start using rvm through gnome terminal.This article contains more information.