direvent 5.3 Daemon to monitor directories for events such as file removal

これは GNU のパッケージです。

A daemon that monitors directories for events, such as creating, deleting or modifying files. It can monitor different sets of directories for different events. When an event is detected, direvent calls a specified external program with information about the event, such as the location within the file system where it occurred. Thus, "direvent" provides an easy way to react immediately if given files undergo changes, for example, to track changes in important system configuration files.