Install libfilesys-notify-simple-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libfilesys-notify-simple-perl
Description:
simple file system monitor
Filesys::Notify::Simple is a Perl module that provides a simple and unified interface to get notifications of changes for a given filesystem path. It can use inotify2 on Linux or fsevents on Mac OS X, kqueue on FreeBSD, FindFirstChangeNotification on Windows and otherwise falls back to a full directory scan.
Homepage: https://metacpan.org/release/Filesys-Notify-Simple/
Version: 0.12-1
Section: universe/perl