check if user is root

check-if-user-is-root.go

package helpers


import (
    "os/exec"
    "strconv"
)


const WindowsOs = "windows"
const DarwinOs = "darwin"
const LinuxOs = "linux"
const MacOSX = "macosx"
const Debian = "debian"


func isRootUser() (isRoot bool, err error) {
    cmd := exec.Command("id", "-u")
    output, err := cmd.Output()
    if err != nil {
        return false, err
    }


    // output has trailing \n
    // need to remove the \n
    // otherwise it will cause error for strconv.Atoi
    // log.Println(output[:len(output)-1])


    // 0 = root, 501 = non-root user
    id, err := strconv.Atoi(string(output[:len(output)-1]))
    if err != nil {
        return false, err
    }


    return id == 0, nil
}