Log in
Sign up

Share & grow the world's code base!

Delve into a community where programmers unite to discover code snippets, exchange skills, and enhance their programming proficiency. With abundant resources and a supportive community, you'll find everything essential for your growth and success.

Create A New Account
1 snippets
  • alexsib
    Published:
    Go

    Environment variables in Go

    package main

import (
	"fmt"
	"os"
	"strings"
)

func main() {
	os.Setenv("FOO", "1")
	fmt.Println("FOO:", os.Getenv("FOO"))
	fmt.Println("BAR:", os.Getenv("BAR"))

	fmt.Println("----------------------")

	for _, env := range os.Environ() {
		pair := strings.SplitN(env, "=", 2)
		fmt.Println(pair[0])
	}
}

// FOO: 1
// BAR: 
// ----------------------
// HOSTNAME
// PWD
// HOME
// LANG
// SHLVL
// PATH
// _
// FOO

    Here's an example how you can manage environment variables. To assign a value to a key, utilize os.Setenv. Retrieve a value by key using os.Getenv, which will yield an empty string if the key isn't found. Use os.Environ to list all key/value pairs, returned as a string slice formatted as KEY=value. You can split these strings using strings.SplitN to separate keys and values.

    go
    env
    0 Burnfires
    0
    • Add Snippet
    Snippets46
    Categories0
    Tags62
    Users3
    Popular snippets
    Related tags