How to make pipes work with Runtime.exec()?

Question

Consider the following code:

String commandf = \"ls /etc | grep release\";

try {

    // Execute the command and wait for it to complete
    Process child =         


        

Answer 1

Write a script, and execute the script instead of separate commands.

Pipe is a part of the shell, so you can also do something like this:

String[] cmd = {
"/bin/sh",
"-c",
"ls /etc | grep release"
};

Process p = Runtime.getRuntime().exec(cmd);