Question

I have 2 threads running in paralel. The run function of the threads is as follows

public void run(){
    Runtime rt = Runtime.getRuntime();
    Process s;
    try {
      s = rt.exec("cd /.../somefolder/"+i+"/");
      closeStream(s); // this closes process s

      s = rt.exec("sh adapMs.sh");
      closeStream(s); // this closes process s
    } ...
}

adapMs.sh creates some folders, files .. under the current directory which is specified by the line

  s = rt.exec("cd /.../somefolder/"+i+"/");

For example thread1 uses the directory 1. While thread1 uses the directory 1, another thread2 executes the line

  s = rt.exec("cd /.../somefolder/"+i+"/");

which is directory 2.

Does this cause thread1 to create its new files under directory 2 or it creates it folders, files under directory 1 anyway?

in other words, does thread 2 cause to change thread1’s current directory?

Answer 1

Not sure whether your solution is workable, but this is clearly the intended way to solve your problem in Java:

rt.exec("sh adapMs.sh", null, new File("/.../somefolder/" + i + "/"));

edit removed ‘cd’ and added file