Quick/easy way to monitor how often one image file is being served by Apache

Question

Our analytics software monitors the HTML pages that we're serving quite nicely (through embedded javascript) but we have a few image files that are not included in these reports as they're not attached to any HTML. Knowing the file's name/path, I'm looking for quick (and dirty if necessary) way to identify how many times a given image was served by Apache on each Day (or hour?).

Answer 1

You will need to look at your particular log format, but as an example:

grep '/foo.jpg' /var/log/access.log | grep '11/May' | wc -l

Answer 2

Quick and dirty: grep for the image in the access log.

Number of times in a day = number of lines containing that pattern (assuming you roll your logs daily).
Number of times in an hour/minute/morning/afternoon/etc. gets a bit more complex but is still easily accomplished with some creative perl or shell scripting (the particulars of which depend on your log format)