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focustrate/gist:6868884

Created October 7, 2013 14:26
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1. parse unique IPs from file of access log entries (store to a file) 2. run whois against all of them (store to another file)
Raw
gistfile1.txt
# grep -oP "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}" file_of_access_log_entries | sort -u > file_of_ip_addresses
# xargs -L1 whois < file_of_ip_addresses > file_of_whois_output
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