How do I remove all installed gems?
To uninstall all gems, you must loop through all the entries in the gem list with bash scripts.
Table of Contents
How are all gems updated in Ruby?
- Update RubyGems. To update to its latest version with: gem update –system.
- Install gems. To install a gem (Ruby package), run: gem install
- List of installed gems. gem list
- Update installed gems. To upgrade all gems or a particular gem: gem upgrade 
- Remove old versions of gems.
How are gems removed in Pokémon Ruby?
How to uninstall a ruby gem
- Open a terminal. On Windows, you can do this by clicking “Start” and “Run.” When the “Run” dialog box appears, type “cmd”. On Mac OS X, you can simply click the Spotlight button and type “Terminal.”
- Type the following command to uninstall a gem:
- Respond to the prompts of the uninstall command.
How do I uninstall Ruby from Windows?
Control Panel > System > Environment Variables > remove any paths in the PATH environment variable that have Ruby installations. Control Panel > Programs and Features > Uninstall any Ruby Installer applications listed. Delete the Windows folders where it is installed.
How do I uninstall the default package?
So first, locate where those files are. Delete the one you don’t need. Then install (or reinstall) the gem you want to set as default. Finally you will have installed only the version you wanted.
What do you need to know about RubyGems?
Ruby installs the rbtree dependency and builds its extension, installs the drip gem, and then builds the documentation for the installed gems. You can disable documentation generation by using the –no-doc argument when installing gems. RubyGems modifies your Ruby load path, which controls how the require statement finds your Ruby code.
How to uninstall a gem in RubyGems?
The list command displays your locally installed gems: (Ruby ships with some gems by default, bigdecimal, io-console, json, minitest, psych, rake, rdoc, test-unit for ruby 2.0.0). The uninstall command removes the gems you have installed.
How to name a Ruby file in RubyGems?
Put the Ruby code in lib, name a Ruby file the same as your gem (for the “free will” gem, the file should be freewill.rb, see also your gem name) and RubyGems can load it . The lib directory typically contains just one .rb file and a directory with the same name as the gem that contains the rest of the files.
Is there a way to update RubyGems to 1.9?
The gem command allows you to interact with RubyGems. Ruby 1.9 and newer come with RubyGems built in, but you may need to update to fix bugs or new features. To update RubyGems or install it for the first time (if you need to use Ruby 1.9), visit the download page.