Running a Linux command from java

Question

I'm trying to run a command from java. But command is not executing. Can anyone pointout why?

 String path = dest+"/info_updated.csv";
     File file = new File(path);
    String command = "sed -i '/" + subscriberId + "/d' "+file;
    System.out.println("command "+command);

       Runtime run = Runtime.getRuntime();

          Process p = null;
          try {
            p = run.exec(command);

            InputStream errorStream = p.getErrorStream();
            p.waitFor();

          } catch (IOException ioe) {
            ioe.printStackTrace();
            System.out.println("ERROR.RUNNING.CMD");
          } catch (Exception e) {
            e.printStackTrace();
          } finally {
            p.destroy();
          }
          return true;
  }

In the log it is printing the command correctly.

command sed -i '/L13876110226750000/d' /usr/share/apache-tomcat-6.0.37/webapps/SMS/info_updated.csv

But it is not executing.

define "not executing", any stacktrace? Also, this will most likely make tomcat redeploy the SMS webapp — user180100
– user180100, Commented Mar 28, 2014 at 6:29

locoyou · Accepted Answer · 2014-03-28 06:48:01Z

2

You could add /bin/sh -c before your command and have a try.

Like this:

String[] command = {"/bin/sh", "-c", "sed -i '/" + subscriberId + "/d' "+file};
Process p = run.exec(command);

answered Mar 28, 2014 at 6:48

locoyou

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