public String runNexusCommandViaSSH(String command) throws Exception {
        StringBuilder sb = new StringBuilder();
       /* List<String> results = new ArrayList<String>();
        StringBuilder sb = new StringBuilder();

        java.util.Properties config = new java.util.Properties();
        config.put("StrictHostKeyChecking", "no");

        JSch jsch = new JSch();

        Session session = jsch.getSession("usr", "host", 22);

        session.setPassword("pwd");
        session.setConfig(config);
        //session.setTimeout(10000);
        session.connect();*/
        System.out.println("we are in nexus command");
        Channel channel = session.openChannel("shell");
        System.out.println("we have got channel object");

        //channel.setInputStream(null);
        //channel.setOutputStream(null);

        InputStream in = channel.getInputStream();
        OutputStream out = channel.getOutputStream();

        ((ChannelShell) channel).setPty(false);
        channel.connect();

        byte[] tmp = new byte[1024];

        //out.write((command + ";exit").getBytes());
        out.write((command).getBytes());
        out.write(("exit").getBytes());
        out.write(("\n").getBytes());
        out.flush();
        System.out.println("enter command to output stream");
        Thread.sleep(1000);
        while (true) {
            while (in.available() > 0 ) {
                System.out.println("Some info available for us");
                int i = in.read(tmp, 0, 1024);
                if (i < 0) {
                    break;
                }
                String buffer = new String(tmp, 0, i);
                sb.append(buffer);
                if (buffer.contains("REMOTE JSH COMMAND FINISHED")) {
                    System.out.println("[debug] breaking at finished");
                    break;
                }
            }
            
            if (channel.isClosed()) {
                System.out.println("Close input stream..");
                in.close();
                break;
            }
            // wait some time while script will be executed
            Thread.sleep(1000);
        }
        channel.disconnect();
        System.out.println("Channel disconnect..");
        //session.disconnect();        
        System.out.println("Rezult of runNexusCommandViaSSH: " + sb.toString());
        
        return sb.toString();
    }

ls -la; cd /opt/script; up.sh

ls -la; cd /opt/script; up.sh; exit

out.write((command).getBytes());
out.write(("exit").getBytes());

out.write((command + ";exit").getBytes());