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How to get the environment variables using syscall in Golang?

Here, we will learn to get the environment variables using syscall in Golang.
Submitted by IncludeHelp, on November 12, 2021

In the Go programming language, to get environment variables using syscall – we use the Environ() function of the the syscall package. The Environ() function returns an array of strings populated with your environment variables.

Syntax:

func Environ() []string

Consider the below example demonstrating how to get environment variables using syscall in Golang?

package main

import (
	"fmt"
	"syscall"
)

func main() {
	// Using the Environ() function
	// Getting the environment variables
	env := syscall.Environ()

	// Printing
	fmt.Println("Environment variables:")
	for i := range env {
		fmt.Println(env[i])
	}
}

Output

Environment variables:
LANGUAGE=en_US:en
HOSTNAME=Check
HOME=/
GOROOT=/usr/local/go
TERM=xterm
PATH=/opt/swift/swift-5.0-RELEASE-ubuntu14.04/usr/bin/:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
DISPLAY=:1
LANG=en_US.UTF-8
DEBIAN_FRONTEND=noninteractive
GOCACHE=/home/.cache
LC_ALL=en_US.UTF-8
PWD=/home

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