How make runtime.exec() working on multi-OS in Java?

Question

I call a runtime execution on OSX adding "/bin/bash", "-c" before the command, such as:

Runtime runtime = Runtime.getRuntime();  
Process process = runtime.exec(new String[] { "/bin/bash", "-c", cmd });  

I know that it is different for Windows and Linux. How can I make sure that my runtime command works on multi-OS?

Thank you.

Answer 1

Use something like:

    String osName = System.getProperty("os.name");
    if(osName.startsWith("Windows")) {
        // windows code
    } else {
        if(osName.startsWith("Linux") {
             // linux code
        } else {
             // mac code
        }
    }

Disclaimer: This is just orientative. There are still many corner cases (eg FreeBSD) that you need to test to get correct behavior.