Detailed explanation of CentOS 7 Golang installation tutorial

Golang (also known as Golang) is a relatively new programming language developed by Google. This language supports concurrency, garbage collection, fast compilation and other features, so it is becoming more and more popular among developers. This article will introduce how to install Golang under CentOS 7 system.

Step 1: Download the Golang installation package

First, you need to download the Golang installation package from the official website. Open the website https://golang.org/dl/, find the latest version of the installation package, and copy the download link.

Then, open the terminal in the CentOS system and use the wget command to download the Golang installation package. Here we take version 1.16.7 as an example:

wget https://golang.org/dl/go1.16.7.linux-amd64.tar.gz

Step 2: Decompress the installation package

After the installation package is downloaded, you need to use the following command to decompress it to the /usr/local directory:

sudo tar -C /usr/local -xzf go1.16.7.linux-amd64.tar.gz

This command will extract the program to the /usr/local/go directory.

Step 3: Set environment variables

To use Golang, you also need to set environment variables. By editing the /etc/profile file, you can have the system automatically set environment variables at startup. Open the file and add the following content at the bottom:

export PATH=$PATH:/usr/local/go/bin

Then use the following command to verify that the environment variables are set correctly:

source /etc/profile

Step 4: Test the installation

After the system installation is completed, It's best to do a simple test to make sure everything is working properly. Run the following command to create a simple "Hello, world!" program:

vim hello.go

Enter the following into the editor:

package main

import "fmt"

func main() {
    fmt.Println("Hello, world!")
}

Save and exit the editor. Next, compile the program using the following command:

go build hello.go

This command will create an executable file named hello in the current directory. Finally, run the following command to run the program:

./hello

If "Hello, world!" is displayed on the terminal, the installation and configuration of Golang on the CentOS 7 system has been completed.

Summary

This article introduces how to install and configure Golang on CentOS 7 system. If you encounter any issues, please refer to the official Golang documentation or community forums for more information. Thank you for reading and supporting!

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