EDIT: This article is outdated. I have moved away from Prezto and now use my own minimal ZSH settings. Zsh is an amazing shell, and Oh-my-zsh is very good at showcasing its power without having to dive into too much configuration. I recommend it to Zsh first-timers: within minutes they can enjoy autocompletion on steroids, crazy prompt tweaking, git integration as well as many other plugins. BUT.