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Linux Filesystem Events with inotify

Triggering scripts with incron and systemd. It is, at times, important to know when things change in the Linux OS. The uses to which systems are placed often include high-priority data that must be processed as soon as it is seen. The conventional method of finding and processing new file data is to poll for it, usually with cron. This is inefficient, and it can tax performance unreasonably if too many polling events are forked too often.