Go or GoLang, as it is called, is an open-source programming language designed to help ease the development of simple and scalable applications. It was implemented as a product of Google Engineering in 2009. It was referred to as a statically-typed programming language with the ease of use, versatility, and reliability.
Currently, Golang has become one of the most popular programming languages due to its efficiency, clean design, expressive, and concise design model. Some of the projects that make use of Golang are:
- snappy – a package manager
- Juju – a service orchestration tool by canonical
- Docker – a set of tools for deploying containers
- Dropbox moved the critical components to Go lang from python
The features of the Go programming language are:
- It is Open-Source
- It has a powerful Standard Library and Tool Set
- Concurrency Support – it offers easy and trackable concurrency options.
- Garbage Collection
- Testing Capabilities
- Cross-Platform Development Opportunities
- Hiighly scalable
This guide offers a systematic demonstration of how to install Go (Golang) on CentOS 7 / RHEL 7.
Step 1 – Update System
First, ensure that your system is up-to-date and packages are to their latest versions. This is achieved using the command below.
sudo yum update
Install the required packages.
sudo yum install wget
Step 2 – Install Go (Golang) on CentOS 7 / RHEL 7
In this guide, I will demonstrate two ways to install Go (Golang) on CentOS 7 / RHEL 7 i.e
- Manual installation
- Using Golang installer.
Option 1) – Install Go (Golang) on CentOS 7 / RHEL 7 using the Golang Installer.
This is yet another method to get Golang installed on your CentOS 7 / RHEL 7 system. It involves downloading the official Golang Installers for Linux systems as below.
sudo yum -y install wget wget https://storage.googleapis.com/golang/getgo/installer_linux
With the installer downloaded, make it executable.
chmod +x ./installer_linux
Now run the installer to install the latest Golang version.
The installation will proceed as below:
Welcome to the Go installer! Downloading Go version go1.19 to /home/thor/.go This may take a bit of time... Downloaded! Setting up GOPATH GOPATH has been set up! One more thing! Run `source /home/thor/.bash_profile` to persist the new environment variables to your current session, or open a new shell prompt.
You will then be required to source the
Finally, verify the installed version of Golang.
$ go version go version go1.19 linux/amd64
Option 2) Install Go (Golang) on CentOS 7 / RHEL 7 Manually.
This installation method requires one to download the latest available Golang package from the official Golang release page.
Alternatively, you can download the tarball using
wget as below.
With the tarball downloaded, verify the checksum.
Verify that the output matches the one on the download page.
Next, extract the tarball.
sudo tar -C /usr/local -xzf go*.linux-amd64.tar.gz
Then proceed and adjust your PATH variable. This will tell your system where to find and execute the GO executable binaries. This can be done by adding the below line to $HOME/.profile for installation on the current user or /etc/profile for the system-wide installation.
##For Current user $ vi $HOME/.profile ##For system-wide $ sudo vi /etc/profile
In the file, add the below lines.
For the changes made to apply, you may be required to log out and log in back to your system or directly execute them from the profile with the command:
source $HOME/.profile ##OR## source /etc/profile
That it! You have installed Golang on your CentOS 7 / RHEL 7 system.
Now, verify your installation by checking the installed Golang version.
$ go version go version go1.19 linux/amd64
Step 3 – Test your Go Installation on CentOS 7 / RHEL 7
Here, we want to test our Go installation by setting up a simple workspace then building a simple Hello World program using Golang.
First, create a workspace directory.
Then create a Go file for the Hello World program.
mkdir -p ~/go/src/hello
Now in the directory, create a hello.go file as below.
In the created file, add the below lines.
package main import "fmt" func main() fmt.Printf("Hello, World! Golang is Amazing!\n")
Build the Go file.
cd ~/go/src/hello go mod init go build
Now execute your program.
rhellab$ ./hello Hello, World! Golang is Amazing!
From the output above, it is safe to assume that our Golang installation is working perfectly.
That was enough learning! I hope you too managed to install Go (Golang) on CentOS 7 / RHEL 7.