I have files with lines in the following formats:
. . . 12/16/09 17:56:30.211 rest of line... . . . 12/17/09 05:34:10.809 rest of line... . .
How do I grep the lines out of this file that are between two dates, i.e. all the values for one day? I need to create a daily file with the contents from all the different server logs for that day.