1 /* 2 * Copyright (c) 2006-2011 Christian Plattner. All rights reserved. 3 * Please refer to the LICENSE.txt for licensing details. 4 */ 5 import java.io.BufferedReader; 6 import java.io.IOException; 7 import java.io.InputStream; 8 import java.io.InputStreamReader; 9 10 import ch.ethz.ssh2.Connection; 11 import ch.ethz.ssh2.Session; 12 import ch.ethz.ssh2.StreamGobbler; 13 14 public class StdoutAndStderr 15 { main(String[] args)16 public static void main(String[] args) 17 { 18 String hostname = "127.0.0.1"; 19 String username = "joe"; 20 String password = "joespass"; 21 22 try 23 { 24 /* Create a connection instance */ 25 26 Connection conn = new Connection(hostname); 27 28 /* Now connect */ 29 30 conn.connect(); 31 32 /* Authenticate */ 33 34 boolean isAuthenticated = conn.authenticateWithPassword(username, password); 35 36 if (isAuthenticated == false) 37 throw new IOException("Authentication failed."); 38 39 /* Create a session */ 40 41 Session sess = conn.openSession(); 42 43 sess.execCommand("echo \"Text on STDOUT\"; echo \"Text on STDERR\" >&2"); 44 45 InputStream stdout = new StreamGobbler(sess.getStdout()); 46 InputStream stderr = new StreamGobbler(sess.getStderr()); 47 48 BufferedReader stdoutReader = new BufferedReader(new InputStreamReader(stdout)); 49 BufferedReader stderrReader = new BufferedReader(new InputStreamReader(stderr)); 50 51 System.out.println("Here is the output from stdout:"); 52 53 while (true) 54 { 55 String line = stdoutReader.readLine(); 56 if (line == null) 57 break; 58 System.out.println(line); 59 } 60 61 System.out.println("Here is the output from stderr:"); 62 63 while (true) 64 { 65 String line = stderrReader.readLine(); 66 if (line == null) 67 break; 68 System.out.println(line); 69 } 70 71 /* Close this session */ 72 73 sess.close(); 74 75 /* Close the connection */ 76 77 conn.close(); 78 79 } 80 catch (IOException e) 81 { 82 e.printStackTrace(System.err); 83 System.exit(2); 84 } 85 } 86 } 87