fswatch

fswatch is a file change monitor that receives notifications when the contents
of the specified files or directories are modified. fswatch implements several
monitors based on:

the File System Events API of Apple macOS.
kqueue, a notification interface introduced in FreeBSD 4.1 (and supported on
most *BSD systems, including macOS).
the File Events Notification API of the Solaris kernel and its derivatives.
inotify, a Linux kernel subsystem that reports file system changes to applications.
ReadDirectoryChangesW, a Microsoft Windows API that reports changes to a directory.
A monitor which periodically stats the file system, saves file modification times
in memory, and manually calculates file system changes (which works anywhere stat(2)
can be used).


          

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License: GPL-3.0-or-later
URL: https://github.com/emcrisostomo/fswatch