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Usage

extract [start=] [early=] [stop= | span=]
extract takes log files from the standard input assuming that first field is timestamped with an ISO8601 date/time similar to:
2007-02-11T23:27:25Z done taux ovolts=2.832 cloud=0.88
It then takes ISO8601 timestamps as the start time entered on the command line and the stop time entered either as start= in ISO or as a span in seconds and and will print out all records between them to standard out.

Louis-Gregory Strolger 2012-01-09