On Nov 28, 2007, at 3:05 PM, Oliver wrote:
> One process periodically will append its output to a file (which is
> not under my control), I want to write a ruby problem to detect and
> report only the *new* stuff that went into the output file ... Besides
> the brute force way such as opening the file and counting the lines
> etc, is there a better solution to it?

You can use File.stat('filename').size to get the number of bytes in
the file or .mtime to find the last modification time.  If the bytes
and/or time changes you can then open the file and grab the new lines.

Gary Wright