Chirp is a dynamic language inspired by Tcl and written in Go.

First, you'll need to download and install Git. Once you have Git installed, make sure that the git command is available from the command line. If not, you'll need to add it to your PATH environment variable.

Next, you'll need to download and install Go. Once it's installed, you'll need to create a workspace and set your GOPATH environment variable to your workspace folder. The Go documentation contains a great page explaining the details on setting up your workspace titled, How to Write Go Code. There is also a nice screencast available as well.

Once you've setup your workspace, open up a command line to your workspace folder and run the following:

go get github.com/yak-labs/chirp-lang
cd src/github.com/yak-labs/chirp-lang/chirp
go install

This will fetch the Chirp source code, ensure you're on the master branch, and build the command line executable to run Chirp code. If you've added GOPATH/bin to your PATH, you should now be able to run chrip from your command line.