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Execute a unix 'ps' command in Java

Posted on 1997-12-21
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Last Modified: 2006-11-17
How can I execute a unix 'ps' command in unix with Java ?
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Question by:templer122197
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Accepted Solution

by:
ashishkh earned 150 total points
ID: 1231780
public class TestPs
{
        public static void main(String args[])
        {
          try
          {
                Runtime rt = Runtime.getRuntime();
                Process ps = rt.exec("ps");
                ps.waitFor();
                System.out.println("The output of process is " + ps.getOutputStr
eam());
                System.out.println("The output of process is " + ps.exitValue())
;
           }
           catch(Exception e)
           {
                System.err.println(e.getMessage());
           }
        }

}

The above java code executes unix 'ps' command and prints its exit value. I am printing the output of ps command. You can do so by getting the OutputStream of the Process using getOutputStream method of Process class. Then you can print the output stream of that process using normal read calls.
Hope this solves the problem.
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Author Comment

by:templer122197
ID: 1231781
Excellent
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