3.1.2 File Name Based Behaviors

You can specify behaviors on a file name regular expression match basis by customizing the variable fcm-behavior-files. This variable must be a list of specifications of the form ‘(regexp :key value ...)’. regexp is obviously a regular expression that will be use to match file names. The available keys are the same as before (see File Specific Behaviors) with the addition of the :create key.¹

By default, FCM disqualifies files located in /tmp/.