How do I install ruby gems on Mac

Question

How do I install RubyGems on my Mac?

I tried to run $ gem install rubygems-update with no luck . It returns

ERROR:  While executing gem ...          


        

Answer 1

One more variant is to use brew-gem.

https://formulae.brew.sh/formula/brew-gem

https://github.com/sportngin/brew-gem

Just copy/paste from the documentation:

brew install brew-gem

Usage

brew gem install heroku

To install a specific version: brew gem install heroku 3.8.3

To install using a brew installed ruby(/usr/local/bin/ruby): brew gem install heroku --homebrew-ruby

And with a specific version: brew gem install heroku 3.8.3 --homebrew-ruby

To upgrade: brew gem upgrade heroku

To uninstall: brew gem uninstall heroku

To check information: brew gem info heroku

Note: Installed gems are listed in brew list with prefix of gem-, like gem-heroku.