Quick RubyGems Command References for Jekyll

Published: by Creative Commons Licence (Last updated: )

Apprently gem --help would be helpful but just too long to read, the following commands are just for quick references purpose.

  • Install/Uninstall gem

gem install jekyll
gem uninstall jekyll

  • Install specific version of gem

gem install pygments.rb --version 0.4.2

  • Uninstall specific versions of gem

    • Prompt 'Select gem to uninstall' and let the user choose

    gem uninstall jekyll

    • Uninstall specific version

    gem uninstall jekyll --version 1.0.1
    gem uninstall jekyll --version '<1.0.1'

    • Remove all old versions of jekyll

    gem cleanup jekyll

  • List all local gem

gem list --local

  • List all versions of gem

gem list --all

  • List gem with specific name

gem list jekyll

  • Update installed gem

gem update

  • Update installed system gem

gem update --system