Inotify is a Linux® feature that monitors file system operations, such as read, write, and create. Inotify is reactive, surprisingly simple to use, and far more efficient than, say, busy polling from a cron job. Learn how to integrate inotify into your own applications, and discover a set of command-line tools you can use to further automate system administration.
Traditionally, Unix/Linux/POSIX filenames can be almost any sequence of bytes, and their meaning is unassigned. The only real rules are that "/" is always the directory separator, and that filenames can't contain byte 0 (because this is the terminator). Although this is flexible, this creates many unnecessary problems. In particular, this lack of limitations makes it unnecessarily difficult to write correct programs (enabling many security flaws), makes it impossible to consistently and accurately display filenames, causes portability problems, and confuses users. more ....
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