How do I set environment variables in Go?

How do I set environment variables in Go?

You can set environment variables in Go using the os package. Use os.Setenv(key, value) to set a variable.

Can you show me an example of how to use os.Setenv?

Sure! Here's a simple example:

package main

import (
    "fmt"
    "os"
)

func main() {
    os.Setenv("MY_VAR", "Hello, World!")
    fmt.Println(os.Getenv("MY_VAR"))
}

What if I want to read an environment variable?

You can read an environment variable using os.Getenv(key). It returns the value of the variable or an empty string if it doesn't exist.

Is there a way to unset an environment variable?

Yes, you can unset an environment variable using os.Unsetenv(key). This will remove the variable from the environment.