How to determine the current operating system in a Jenkins pipeline

Question

What would be the way to determine the current OS a Jenkins pipeline is running?

Context: I\'m building a shared Jenkins pipeline script that should run on all platf

Answer 1

Assuming you have Windows as your only non-unix platform, you can use the pipeline function isUnix() and uname to check on which Unix OS you're on:

def checkOs(){
    if (isUnix()) {
        def uname = sh script: 'uname', returnStdout: true
        if (uname.startsWith("Darwin")) {
            return "Macos"
        }
        // Optionally add 'else if' for other Unix OS  
        else {
            return "Linux"
        }
    }
    else {
        return "Windows"
    }
}