Executing a command on the command line and reading the console output in Java

Question

I need to get the hostId of my server using a Java program. Is there something in the Java API that is built-in which can help me do this?

lab.com$ hostid
f9y7777j -> How can I get this using java

possible duplicate of java runtime.getruntime() getting output from executing a command line program — Bohemian
– Bohemian ♦, Commented May 4, 2012 at 0:15

Martin · Accepted Answer · 2012-05-04 00:29:04Z

1

The following would allow you to run a console command and store the result:-

 ProcessBuilder pb = new ProcessBuilder("hostid");
 Process p = pb.start();
 BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
 String line = null;
 while ((line = reader.readLine()) != null)
 {
    // Store returned string here.
 }
 reader.close();

edited May 4, 2012 at 0:29

answered May 4, 2012 at 0:16

Martin

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user845279 · Accepted Answer · 2012-05-04 01:30:03Z

1

Try the following code:

System.out.println(java.net.InetAddress.getLocalHost().getHostName());

answered May 4, 2012 at 1:30

user845279

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