Execute Bash script via Java GUI

Couple days ago I got question from My Friend, is there any possibilities to execute bash script with some input from Swing? I didn't answer that question but let me think about it later after got free time.
Today I write answer,
Scenario --> I need to execute bash script with input SUBJECT and EMAIL ADRESS, got 2 input here.

Shell script


just create bash/shell script in your linux/unix machine as per below

#! /bin/sh 

echo "This is content of Email" | /usr/bin/mutt -s "Request by ${1}" ${2}  -a just_test.txt

Tag of ${1} is first input of bash script and ${2} is second input.
I need jSch library to execute bash script, so go to here and download library, then you just include jsch library into your project
This is Swing Gui for execute Bash Script

What I did was , create class with execute bash/shell script with help from jSch library. here my simple code

private void SendEmail(String ntuser, String email) throws Exception {                
        String host = "172.18.129.66";
        String user = "test";
        String pass = "test";
        String command = "/bin/sh /home/cmsuser/testbash.sh "+ntuser+" "+email;
                                    
        try {
            JSch jsch=new JSch(); 
            //jsch.setKnownHosts("/home/cmsuser/.ssh/known_hosts"); 
            Session session = jsch.getSession(user, host);  
            session.setPassword(pass);
            java.util.Properties config=new java.util.Properties();
            config.put("StrictHostKeyChecking", "no");
            session.setConfig(config);
            session.connect(); 
       
            ChannelExec channel = (ChannelExec) session.openChannel("exec"); 
            channel.setCommand(command);  // Pull Report            
            channel.connect(); 
            
            BufferedReader reader = new BufferedReader(new InputStreamReader(channel.getInputStream()));
            String output = reader.readLine();
            while (output != null) {
                System.out.println(output);
                output = reader.readLine();
            }
            reader.close();
            
            channel.disconnect();  
            session.disconnect();  
        
        } catch (Exception t) {
            System.out.println(t);
        }
    }

You must change your host name, user & password before you save and execute your java project. And the next step go to my Github page for more details