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

The workaround I found for this is

try{
   sh(script: myScript, returnStdout: true)
 }catch(Exception ex) {
    //assume we are on windows
   bat(script: myScript, returnStdout: true)
 }

Or a little bit more elegant solution without using the try/catch is to use the env.NODE_LABELS. Assuming you have all the nodes correctly labelled you can write a function like this

def isOnWindows(){
    def os = "windows"
    def List nodeLabels  = NODE_LABELS.split()
    for (i = 0; i 

and then

if (isOnWindows()) {
    def osName = bat(script: command, returnStdout: true)   
} else {
    def osName = sh(script: command, returnStdout: true)
}