If Go is not pre-installed in your system you can go to https://golang.org/dl/ and choose your platform to download and install Go.
To set up a basic Go development environment, only a few of the many environment variables that affect the behavior of the
go tool (See: Listing Go Environment Variables for a full list) need to be set (generally in your shell's
~/.profile file, or equivalent on Unix-like OSs).
Like the system
PATH environment variable, Go path is a
; on Windows) delimited list of directories where Go will look for packages. The
go get tool will also download packages to the first directory in this list.
GOPATH is where Go will setup associated
src folders needed for the workspace:
src— location of source files:
pkg— has compiled
bin— contains executable files built by Go
From Go 1.8 onwards, the
GOPATH environment variable will have a default value if it is unset. It defaults to $HOME/go on Unix/Linux and %USERPROFILE%/go on Windows.
Some tools assume that
GOPATH will contain a single directory.
The bin directory where
go install and
go get will place binaries after building
main packages. Generally this is set to somewhere on the system
PATH so that installed binaries can be run and discovered easily.
This is the location of your Go installation. It is used to find the standard libraries. It is very rare to have to set this variable as Go embeds the build path into the toolchain. Setting
GOROOT is needed if the installation directory differs from the build directory (or the value set when building).