Server Admin Manual

“If it is done with ssh on the server, it goes here. If it is done with an account logged into a website, it goes into one of the other manuals.”

1. Tasks

1.1. Setting up chruby for a new website

Summary. You have nothing to do to enable chruby for a new website, and only have to create a suitable .ruby-version file to activate one of the installed Rubies that chruby manages. Remember to do this before installing bundler and the gems bundle, to avoid an accidental global installation. For a walkthrough process, see this example.


chruby is installed system wide by means of the following content in /etc/profile.d/ The inclusion of means we also enabled Ruby version auto-switching.

if [ -n "$BASH_VERSION" ] || [ -n "$ZSH_VERSION" ]; then
        source /usr/local/share/chruby/
        source /usr/local/share/chruby/

You can find out the current Ruby version by executing chruby. This will list all installed versions and mark the chosen version with an asterisk.

If chruby encounters a file .ruby-version in the current directory, then this will tell which is the currently chosen version.