Before you can get started with the cli tools you need to make sure you the Go programming language installed.
Now that you’ve installed the Go programming language there are a few commands you can run to install the cli and make developing with the cli tools even easier
go get -u github.com/TIBCOSoftware/flogo-cli/.... This will get you both the CLI tools.
go get -u github.com/golang/lint/golint
If you want to update the CLI tools, you can run
go get -u github.com/TIBCOSoftware/flogo-cli/... to get the latest version.