Thank your for the simple explanations. My brain was so fried from gathering
all the nmap data
and Google search data and then combining it that the straightforward
approach never dawned.
My obfuscations of the test files upset their original sorting.
My quick & dirty approach was to load the longer file into LibreOffice Calc,
then append the
smaller file, sort the combined files, copy & paste into Leafpad, and then
apply Magic Banana's
duplicated-file script, which performed the last step in 0.064 second,
leaving me with ca. 85,000
rows of duplicated hostnames. Some refinements need - more data from Google
searches, inclusion
of data fro earlier analyses (i.e., more ASN's), etc. Not a task for just one
person.
The trisquel forum continues its invaluable contributions. Thank you !
George Langford