Question

I have an Stand alone Application which runs Shell Script(with parameters)in Ubuntu.

ProcessBuilder pb1 = new ProcessBuilder("sh","deltapackage_app.sh","part_value","pathtofile"); 
Process process1 = pb1.start();

I am taking parameter through GUI.
Now same thing i want to implement in web application where i can take inputs form web page and send it to server and then server will execute the shell script with parameters.

Can any one suggest me the best way of doing this. What things should i use to do this.

I Know i have to learn many things about server. Or can i use same code with Browser based Application.

Answer 1

Consider the following line of code:

Process p = Runtime.getRuntime().exec("/bin/sh -c /bin/ls > ls.out");

This is intended to execute a Bourne shell and have the shell execute
the ls command, redirecting the output of ls to the file ls.out. The
reason for using /bin/sh is to get around the problem of having stdout
redirected by the Java internals. Unfortunately, if you try this
nothing will happen. When this command string is passed to the exec()
method it will be broken into an array of Strings with the elements
being “/bin/sh”, “-c”, “/bin/ls”, “>”, and “ls.out”. This will fail,
as sh expects only a single argument to the “-c” switch. To make this
work try:

    String[] cmd = {"/bin/sh", "-c", "/bin/ls > out.dat"};
    Process p = Runtime.getRuntime().exec(cmd);

Since the command line is already a series of Strings, the strings
will simply be loaded into the command array by the exec() method and
passed to the new process as is. Thus the shell will see a “-c” and
the command “/bin/ls > ls.out” and execute correctly.

http://www.ensta-paristech.fr/~diam/java/online/io/javazine.html