I can't work out if you're trolling or not, but your comment doesn't make sense at all. I needed to perform a task, and I did so fairly trivially from the command line. Someone else offered what they thought might be a shorter alternative, I pointed out that the task was more complex than they thought.

You take this as evidence that it can be done from a GUI?

So, let's go back to your comment. You said:

    I still haven't found a tool which
    doesn't have an equivalent GUI.

If you want to make me take you seriously, please tell me how you would:

    Given two directories,
        find all duplicate files that are
            both less than 10 minutes old

In other words, given directories A and B, find all filenames f such that:

    $A/$f is less than 10 minutes old
    $B/$f is less than 10 minutes old
    $A/$f is identical to $B/$f

Now tell me how you would do that every hour for a week.