How to solve Insecure world writable dir /usr in PATH,mode 040777 warning on Ruby?

Question

/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/universal-darwin13/rbconfig.rb:213: warning: Insecure world writable dir /usr in PATH, mode 0

Answer 1

I fixed this by using Disk Utility to repair disk permissions.

Open the Disk Utility application and select the disk your system is installed on. Then you can select "Repair Disk Permissions" from the First Aid tab. Repair will take a couple of minutes