gistfile1.txt

$ ./dhcpdb_search.pl 
Search mode required, mac, hostname, or IP
Usage:
    dhcpdb_search.pl [options] [search_criteria] [date_criteria]

     Options:
       -help            brief help message
       -man             full documentation

     Output formatting:
       -csv             use CSV friendly output
       -table           use a table format
       -last            print only the most recent record

     Search modes:
       -address         IP address to search for
       -hostname        Hostname to search for
       -mac             MAC address to search for

     Date criteria:
       -datetime        Date to search for (single point in time)
       -startdate       Start date to search (ranged search)
       -enddate         End date to search (ranged search)