RVM is not working in ZSH
Note March 2014:
With latest RVM, the following line:
[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" isn't needed anymore, and it shouldn't be in your ~/.zshrc.
Documentation has been updated in RVM documentation with Zsh:
Make sure in iTerm2 Preferences: Login shell option is set (do not use Command option). This is required for RVM to work.
If you are still getting rvm is not a function errors on iTerm, try:
rvm get stable --auto-dotfiles
Note November 2014
The rvm installation instructions warn that .zshrc doesn't include $PATH when setting PATH, thus replacing PATH's contents without regard for what already exists in PATH.
To remedy this I now append PATH to have .rvm/bin and then prepend $PATH at the beginning of setting PATH on the second line:
export PATH="$PATH:$HOME/.rvm/bin" # Add RVM to PATH for scriptingexport PATH=$PATH:"/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/git/bin:/usr/local/mysql/bin:/opt/local/bin"