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

It is showing that you don't have the permission to write something in that directory. Instead use this directory :

sudo gem install -n /usr/local/bin cocoapods

It perfectly work for me.

(I am using macOS Sierra, version 10.12.6)