Question

void restartWeb() {
        try {
            String[] command = new String[] {"webRestarter.exe" , ">>","webLog.log"};
            Runtime.getRuntime().exec(command);
        } catch (java.io.IOException err) {
        webServer.logError(err.getMessage());
        }
    }

Why doesn’t this work? How could I fix it so it does work like I want it to?

— Executes webRestarter.exe with parameters >>webLog.log

So it’d spit out something like this:

webRestarter.exe>>webLog.log

Answer 1

You simply can’t use pipes in a exec call. Pipes are a functionality of the shell and not of the operating system. So we have to call the shell executable and pass the command. Try this instead:

String[] command = new String[] {"cmd.exe", "/c", "start webRestarter.exe", ">>","webLog.log"};