Question

Can any body help me with how to compile a bash script as part of a java program. I am writing a simple java program that i want to use to invoke bash script commands.

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my java code looks like the following:

    try{
            Process p = Runtime.getRuntime().exec("myscript.sh"); 
        BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream())); 

        String line = null;  

        while ((line = in.readLine()) != null){  
                    System.out.println(line); 
        }  
    }
    catch(IOException e){
        System.out.println(e.getMessage());
    }

and the "mysrcipt.sh" file is a simple script that contains the following lines

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!/bin/bash

echo "enter your input followed by [ENTER]:"

read -e choice

echo $choice

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My problem is, the program waits for an input at the read command in the script even if i enter multiple lines and press enter several times.

Answer 1

It would be helpful to see some code showing what you’re trying to accomplish.

Executing bash script in Java can be done using something like the following…

Runtime runtime = Runtime.getRuntime();
Process process = runtime.exec("YOUR COMMAND STRING");

List<String> lines = IOUtils.readLines(process.getInputStream());