I have files with lines in the following formats:
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12/16/09 17:56:30.211 rest of line...
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12/17/09 05:34:10.809 rest of line...
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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.