C#: tail like program for text file

Question

I have a log file that continually logs short lines. I need to develop a service that reacts (or polls, or listens to) to new lines added to that file, a sort of unix\' tail

Answer 1

It is important to note that Microsoft (since vista/svr08) no longer updates file metadata when a file is updated (such as a log file being updated by a service).

For example, the metadata for a file such as modified date, will not be updated until the file is closed by the service/program which is updating the log file.

Therefore FileSystemWatcher will NOT catch log file updates as you might expect.

https://blogs.technet.microsoft.com/asiasupp/2010/12/14/file-date-modified-property-are-not-updating-while-modifying-a-file-without-closing-it/