I have a directory /my/path/tmpimages. Whenever a file is copied/created there, add a timer that remove that file after x minutes. What I found is that I need to use  inoticoming or incrond to watch for file create event on that directory and then add a timer on that file using at. I understood how to use at echo rm file | at now + 30 minutes but I couldnt find how to use inoticoming or incrond.
Remove created file after x minutes
files;at