Session session = a.getSessionShell("user", "pwd", "host");

			Channel channel = session.openChannel("shell");

			OutputStream outS = channel.getOutputStream();

			PrintStream commander = new PrintStream(outS, true);

			channel.setOutputStream(System.out);

			channel.setInputStream(System.in);

			channel.connect(3 * 1000);

			// shell script

			commander.println("set -o emacs");

commander.println("alias wd='cd /opt/dir'");

commander.println("export TERM=xterm"); commander.flush();

public Session getSession(String userName, String pwd, String hostname) throws JSchException {

		JSch jsch = new JSch();

		Session session = jsch.getSession(username, hostname);

		Properties config = new Properties();

		config.put("StrictHostKeyChecking", "no");

		session.setUserInfo(new LoginUserInfo(password));

		session.setConfig(config);

		session.connect();

		return session;

	}