How to execute 'cd' command and then a linux command in java

Question

I have directory /tmp then I need to execute cd and go to that folder. Then I need to execute./executeScript

Answer 1

Preparation

To start solving the problem, I created a directory /home/vulpini99/tmp . In this directory, I created the bash-script test.sh , which will open firefox for us:

firefox

Then I created a java-file named LinuxCommand.java in the directory /home/vulpini99 .

Main part

cd is just an internal shell command and not an executable program, so I suggest to just use the full path of the bash-script. So the command we want to execute is

bash /home/vulpini99/tmp/test.sh .

In Java, you can use Runtime for this purpose:

import java.io.IOException;

public class LinuxCommand {

    public static void main(String[] args) {
        Runtime run = Runtime.getRuntime();
        try {
            run.exec("bash /home/vulpini99/tmp/test.sh");
        }
        catch(IOException e) {
            e.printStackTrace();
        }
    }
}