#if not yet installed on the system
sudo gem install -n /usr/local/bin cocoapods
#or
sudo gem install cocoapods

#In the project's folder
pod init

#open and edit Podfile
open -a Xcode Podfile

#Uncomment platform :ios, '9.0'
#Uncomment user_frameworks! if you're using Swift

pod install

#A new file <project>.xcworkspace was created. Use it from now on.

Done!