
Go is a modern open source programming language developed by Google. Popular applications such as, Grafana, Docker, etc. are written in Go language. In this tutorial shown how to install Go on Debian 9 machine.
Prerequisites
Before you going to start, you should have non-root user account with sudo privileges.
Install Go on Debian
Follow the steps given below to install Go on Debian 9:
Downloading Go tarball
Currently, latest stable version of Go is version 1.12.5 at the time of writing this article. You can check latest version of Go Download page.
You can download Go tarball using wget or curl:
wget https://dl.google.com/go/go1.12.5.linux-amd64.tar.gz
Now, you should verify the tarball using below command:
sha256sum go1.12.5.linux-amd64.tar.gz
Output should something like this:
Output
aea86e3c73495f205929cfebba0d63f1382c8ac59be081b6351681415f4063cf go1.12.5.linux-amd64.tar.gz
Make sure the output should exact match with the hash value provided at the Go download page.
Extracting the Go tarball
Now extract the downloaded tarball using following command inside /usr/local
directory.
sudo tar -C /usr/local -xzf go1.12.5.linux-amd64.tar.gz
Setting Go Path Variable
You should set path environment variable in order to find Go executable binaries by system. For that we need to open /.profile
using below command:
sudo nano ~/.profile
Now add the below lines to it:
export PATH=$PATH:/usr/local/go/bin:$GOPATH/bin
Save and close the file. After that run below command to reload running profile:
source ~/.profile
Verifying the Go Installation
You can verify the Go installation by Go version command:
go version
Output should look like this:
Output
go version go1.12.5 linux/amd64
Demo Program in Go
Below is given a simple Hello World program in Go language which will print “Hello World” message. Follow the below steps to build simple program.
First of all we will create a workspace directory for Go. You can get more details about go workspace directory visit this page:
mkdir $HOME/demo
Next, create a src
directory inside it using below command:
mkdir -p $HOME/demo/src/hello
In this directory create a file named hello.go
and add below content to it:
sudo nano ~/demo/src/hello/hello.go
package main
import "fmt"
func main() {
fmt.Printf("Hello, World\n")
}
Now go back /demo/src/hello
to build the file and issue go build command:
cd ~/demo/src/hello
go build
The above command will build an executable file with name hello.
You can run the program using executable using following command:
./hello
Output
Hello, World
Conclusion
You have learned how to install Go on Debian 9 system. If you have any queries feel free to comment below.
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