A command line tools, can be easy to use!
Eggs is a node package, so the right way to install it is by the node package manager (npm)
In this way you will find automatically the last version and can update very simply:
sudo eggs update
If you don’t have nodejs installed, install it followind the instruction on nodesource
Install eggs with npm is a simple task, you need two command:
sudo npm config set unsafe-perm true