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becsegal/list_manager_uniqs

Created August 9, 2011 13:51
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Managing email lists to send only to new users
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list_manager_uniqs
# do_not_send list: merge (if required), sort, downcase, and de-dupe
cat exclude1 exclude2 | awk '{print tolower($0)}' | sort | uniq > do_not_send
# large list: repeat process
cat file1 | awk '{print tolower($0)}' | sort | uniq > big_list
# get the entries that are unique to the big_list
comm -13 do_not_send big_list > send
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