Question

I would like to run a shell script(.sh) from a Java class.

Which is the most efficient and fastest way to achieve this?

Is it better to run this script directly from Java, using groovy or is there another way?

Answer 1

Simply use a process builder to create and execute your script:

ProcessBuilder processBuilder = new ProcessBuilder("script.sh", "arg1", "arg2"); //Add more arguments as needed
processBuilder.directory(new File("scriptDir")); //Set the working directory, if needed
Process process = processBuilder.start();

You could also just fire out a call to Runtime.exec():

Process process = Runtime.getRuntime().exec("script.sh");

Personally I’d go with the first approach – it lets you set arguments, working directory, environment variables etc. in a much cleaner and easier way than with just an exec() call.