Install Go
Table of contents
Download
Download the following URL.
https://golang.org/dl/Install
For Mac OS
After downloading a package file, open the package file you downloaded and follow the prompts to install Go.
The package installs the Go distribution to "/usr/local/go". The package should put the /usr/local/go/bin directory in your PATH environment variable. You may need to restart any open Terminal sessions for the change to take effect.
Verify that you've installed Go by opening a command prompt and typing the following command.
Terminal
> go version
For source
Install Go-Bootstrap
In order to install Go, it must be built by Go itself. At first, you need to install bootstrap.
If you already have one, please skip to installing.
Terminal
> mkdir -p /usr/local/src/go > cd /usr/local/src/go > wget https://dl.google.com/go/go1.4-bootstrap-20171003.tar.gz > tar xvfz go1.4-bootstrap-20171003.tar.gz > mv go go_1_4_bootstrap > cd go_1_4_bootstrap/src > ./make.bash ... Installed Go for darwin/amd64 in /usr/local/src/go/go_1_4_bootstrap Installed commands in /usr/local/src/go/go_1_4_bootstrap/bin
Install the latest version of Go
Terminal
> mkdir -p /usr/local/src/go > cd /usr/local/src/go // When the latest version is 1.15. > wget https://golang.org/dl/go1.15.src.tar.gz > tar xvfz go1.15.src.tar.gz > mv go 1_15 > cd 1_15/src > GOROOT_BOOTSTRAP="/usr/local/src/go/go_1_4_bootstrap" ./make.bash ... Installed Go for darwin/amd64 in /usr/local/src/go/1_15 Installed commands in /usr/local/src/go/1_15/bin
Setting environment variables
Terminal
// If you are using zsh. % vim ~/.zprofile // If you are using bash. $ vim ~/.bash_profile
profile
... # Go GO_HOME=/usr/local/src/go/1_15 GOPATH=/Users/noknow/dev/go/workplace GOBIN=$GOPATH/bin GOROOT=$GO_HOME export GOPATH export GOBIN export GOROOT # PATH export PATH=$GO_HOME/bin:$PATH ...
Output "Hello World"
Let's output "Hello World" as a sample code.
In this case, Go's workspace would be "/usr/local/go/workplace".
Go needs to create the following directroies.
- bin: binary files.
- pkg: object files.
- src: sorce files.
Terminal
span class="cmd">$ sudo mkdir $GOPATH span class="cmd">$ sudo chown noknow:noknow_gr $GOPATH span class="cmd">$ cd $GOPATH span class="cmd">$ pwd /usr/local/go/workplace span class="cmd">$ mkdir src pkg bin
Next, create a new project. This time, I'll create "project1".
Go can manage multiple packages and projects in one workplace.
Terminal
$ mkdir $GOPATH/src/project1
And then, create the main.go file.
Terminal
$ cd $GOPATH/src/project1 $ vim main.go
main.go
package main
import (
"fmt"
)
func main() {
fmt.Println("Hello World")
}
Build the source files and then execute.
Terminal
$ go install project1 $ $GOPATH/bin/project1 Hello World
It was output "Hello World"!
