I found a few posts regarding installing rvm, but none of them apply here. On a fresh VM installation on Koding, I've followed the instruction to install rvm
\curl -sSL https://get.rvm.io | bash -s stable
This seems to work fine, there are no errors downloading the 2 .tar.gz and .tar.gz.asc files
Then when i activate rvm using : source ~/.rvm/scripts/rvm
that's when i get the error message "bash: /home/railspadawan/.rvm/scripts/rvm: No such file or directory".
I checked .rvm and the scripts directory is missing. I experienced the same problem on Nitrous.io, as well.