Searching apache logs for iPhone User Agents

I was curious if anyone was using an iPhone to read my blog yet, I'm sure before too long we will all be optimizing our sites for 3.5" displays. To find out I did a little grep on my Apache log file and piped it to wc to count the number of matches:

grep 'iPhone;' access.log | wc -l

So far 370 hits including images, to take out requests for images I added:

grep 'iPhone;' access.log | fgrep --invert-match images | wc -l

That yields 106 requests, hello iPhone readers...

BTW the user agent for the iPhone looks like this:

Mozilla/5.0 (iPhone; U; CPU like Mac OS X; en) AppleWebKit/420+ (KHTML, like Gecko) Version/3.0 Mobile/1A543a Safari/419.3

Learn more about grep

There is a lot you can do with the grep linux command. Here, I'm using the --invert-match flag, which lets you perform a Inverted or Negative grep search. You can also do a case insensitive grep search, or even count files by extension using grep. Grep is one of the most useful linux commands to know!