On Sep 20, 2008, at 10:32 PM, Ken Bloom wrote: > James Gray <james / grayproductions.net> wrote: >> On Sep 19, 2008, at 9:32 PM, Bill Kelly wrote: >> >>> -------------- >>> NEW CHALLENGE: >>> -------------- >>> >>> # Given one or more input filenames on the command line, # report >>> the number of unique IP addresses found in all the >>> # data. >>> # >>> # (For our purposes, an IP address may simply be considered >>> # four integerers separated by dots, e.g.: 6.54.123.9 ) >>> # >>> # Optionally, the solution should read stdin if no filenames >>> # were specified. >>> # >>> # Preferably, the solution should be expressed in the form of >>> # a ruby command-line invocation. (Optional.) >> >> ruby -e 'p ARGF.read.scan(/\d{1,3}(\.\d{1,3}){3}/).uniq.size' >> >> New puzzle: Provide a one-liner that can wrap a body of text at a >> requested maximum length. > > Hey, you posed that one already in Ruby Quiz 113 Yeah, this was pointed out earlier. I must me losing my mind. Sorry! James Edward Gray II