For specific purposes there could be a need to monitor file and folders changes on Linux box. To achieve this you can go with incrond. There’s also Pythonic way. Several Python wrappers on inotify feature are accessible. Here we’ll cover simple Python daemon Watcher (github repo). First of all, we need to install python-inotify package:
yum install python-inotify.noarch
python-inotify uses Linux kernel feature called inotify (accessible starting from version 2.6.13). It allows to get notifications on file system event from user-space.
Now you can download last version of the config and the daemon:
mkdir watcher cd watcher wget https://raw.github.com/splitbrain/Watcher/master/watcher.ini wget https://raw.github.com/splitbrain/Watcher/master/watcher.py
Modify your watcher.ini to meet your requirements:
[DEFAULT] logfile=/tmp/watcher.log pidfile=/tmp/watcher.pid [job1] watch=/tmp events=create,delete recursive=false autoadd=true command=ls -l $filename
Now you are ready to start Watcher daemon:
chmod u+x watcher.py ./watcher.py -c watcher.ini debug