Java

SSH Execute Remote Commands

See more SSH Examples

Shows how to execute a command on an SSH server and retrieve the command output. Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkSsh ssh = new CkSsh();

    int port = 22;
    success = ssh.Connect("the-ssh-server.com",port);
    if (success != true) {
        System.out.println(ssh.lastErrorText());
        return;
        }

    // Authenticate using login/password:
    success = ssh.AuthenticatePw("theSshLogin","theSshPassword");
    if (success != true) {
        System.out.println(ssh.lastErrorText());
        return;
        }

    // Send some commands and get the output.
    String strOutput = ssh.quickCommand("df","ansi");
    if (ssh.get_LastMethodSuccess() != true) {
        System.out.println(ssh.lastErrorText());
        return;
        }

    System.out.println("---- df ----");
    System.out.println(strOutput);

    strOutput = ssh.quickCommand("echo hello world","ansi");
    if (ssh.get_LastMethodSuccess() != true) {
        System.out.println(ssh.lastErrorText());
        return;
        }

    System.out.println("---- echo hello world ----");
    System.out.println(strOutput);

    strOutput = ssh.quickCommand("date","ansi");
    if (ssh.get_LastMethodSuccess() != true) {
        System.out.println(ssh.lastErrorText());
        return;
        }

    System.out.println("---- date ----");
    System.out.println(strOutput);

    // --------------
    // Sample output:

    // 	---- df ----
    // 	Filesystem    512-blocks      Used  Available Capacity  iused     ifree %iused  Mounted on
    // 	/dev/disk2    2176716032 265736304 1910467728    13% 33281036 238808466   12%   /
    // 	devfs                382       382          0   100%      662         0  100%   /dev
    // 	map -hosts             0         0          0   100%        0         0  100%   /net
    // 	map auto_home          0         0          0   100%        0         0  100%   /home
    // 	/dev/disk3s2      374668    374668          0   100%    93665         0  100%   /Volumes/Google Chrome
    // 
    // 	---- echo hello world ----
    // 	hello world
    // 
    // 	---- date ----
    // 	Thu Dec 22 17:19:32 CST 2016
  }
}