Quick RubyGems Command References for Jekyll

Published: May 17, 2013 by Yi Zeng (Last updated: March 18, 2014)

• Categories:
• notes 7

• Tags:
• jekyll 5
• ruby 14

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