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How to install Golang in an offline environment

PHPz

Apr 23, 2023 pm 07:29 PM

Golang is a programming language that continues to grow in popularity as more and more developers start using it to build efficient and reliable applications. However, in some cases, we may need to install Golang in an offline environment or in some network-restricted environment. In this article, we will explain how to install Golang in an offline environment.

Step 1: Download the Golang installation package

First, we need to download the Golang installation package from Golang’s official website (https://golang.org/dl/). Please note that you need to choose the corresponding installation package according to your operating system version (such as Windows, Linux or macOS). After downloading, copy the installation package to the local disk in the offline environment.

Step 2: Install Golang

Next, we need to enter the offline environment and install Golang in the offline environment. First, execute the following command in the terminal window to decompress the Golang compressed package:

tar -C /usr/local -xzf go$VERSION.$OS-$ARCH.tar.gz

Note that you need to replace $VERSION, $OS and $ARCH with the corresponding values of the installation package you downloaded. For example, if the installation package you have downloaded is go1.16.5.linux-amd64.tar.gz, the above command will look like this:

tar -C /usr/local -xzf go1.16.5.linux -amd64.tar.gz

After execution, Golang will be decompressed into the /usr/local/go directory.

Step 3: Configure the Golang environment

After installing Golang, we need to set environment variables for it. Please run the following command in the terminal:

export PATH=$PATH:/usr/local/go/bin

This command will add the /usr/local/go/bin directory to the PATH environment variables so that the system can find them when using Golang commands.

Next, we need to set the GOPATH environment variable, which is used to specify the working directory and dependency directory of the Golang project. Please execute the following command in the terminal:

export GOPATH=$HOME/go

This command sets the GOPATH to the go directory in the current user's home directory.

Step 4: Test Golang installation

Now, we can test whether the Golang installation is successful. Please run the following command in the terminal to check the installation version of Golang:

go version

If the output is similar to the following information, Golang is installed successfully:

go version go1 .16.5 linux/amd64

Step 5: Install the Golang package

After installing Golang, we can start to install the Golang package. In an offline environment, we need to manually download the required Golang packages and add them to the src directory of the GOPATH.

For example, if we want to install Gorilla's mux package, we need to execute the following command:

go get github.com/gorilla/mux

This command will automatically The mux package and its dependencies are downloaded into the src directory of the GOPATH.

Summary

Installing Golang in an offline environment may seem a bit complicated, but it can be done easily as long as you follow the steps above. First, we need to download the Golang installation package and copy it to the local disk in the offline environment. Then, we need to unzip the installation package and set environment variables. Finally, we can test whether Golang installed successfully and install the required Golang packages.

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