[LINUX] Let's run a Bash script in Java


If you create a process with Processbuilder or Runtime in Java, the behavior may not always be the same as the behavior on Linux. If you temporarily create a "bash script (shell script)" and execute it, it may behave as you want.


public void executeCommands() throws IOException {

//Temporary file creation
    File tempScript = createTempScript();

    try {
        //Script execution
        ProcessBuilder pb = new ProcessBuilder("bash", tempScript.toString());

       //Error output
       try (BufferedReader buffer = new BufferedReader(new InputStreamReader(process.getErrorStream()))) {

      //Standard output
      try (BufferedReader buffer = new BufferedReader(new InputStreamReader(process.getInputStream()))) {
        Process process = pb.start();
    } finally {
        //Temporary file deletion

public File createTempScript() throws IOException {
    //Temporary file creation
    File tempScript = File.createTempFile("script", null);

    Writer streamWriter = new OutputStreamWriter(new FileOutputStream(
    PrintWriter printWriter = new PrintWriter(streamWriter);

    //I will write a script.
    printWriter.println("cd bin");

  //End of writing

    return tempScript;

Reference (plagiarism of this)


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