Ethernet не работает - xubuntu

Вероятно, вы должны использовать inotify, инструменты командной строки, предоставленные в пакете inotify-tools.

Также лучше должен быть пакет inoticoming. Описание:

Description: trigger actions when files hit an incoming directory
 inoticoming is a daemon to watch a directory with Linux's inotify
 framework and trigger actions once files with specific names are placed
 in there.
 .
 For example it can be used to wait for .changes files uploaded
 into a directory and call reprepro to put them into your repository.