query: Extracing IP addresses as whole words with POSIX BRE/ERE regex
positive_passages.docid: 129110
positive_passages.text: How do you extract IP addresses from files using a regex in a linux shell?
negative_passages.docid: 52235
negative_passages.text: Case insensitive regular expression without re.compile?
negative_passages.docid: 3687
negative_passages.text: Getting the location from an IP address
negative_passages.docid: 18459
negative_passages.text: How to get the list of IP addresses in a LAN?
negative_passages.docid: 75032
negative_passages.text: How to extract the hostname portion of a URL in JavaScript
negative_passages.docid: 43050
negative_passages.text: Can I perform a DNS lookup (hostname to IP address) using client-side Javascript?
negative_passages.docid: 56833
negative_passages.text: How to read an IP address backwards?
negative_passages.docid: 23494
negative_passages.text: How to make  grep display only the matching regexp?
negative_passages.docid: 92128
negative_passages.text: Multi-level wildcard DNS matched by *.domain.com?
negative_passages.docid: 86911
negative_passages.text: Wildcards in a Windows hosts file
negative_passages.docid: 18168
negative_passages.text: How do I make protocol foo hostname-aware?
negative_passages.docid: 22114
negative_passages.text: Extracting a regex matched with 'sed' without printing the surrounding characters
negative_passages.docid: 37492
negative_passages.text: Custom word boundaries in regular expression
negative_passages.docid: 113535
negative_passages.text: Regex word boundary alternatives inside parentheses does not work?
negative_passages.docid: 71679
negative_passages.text: How can I resolve a hostname to an IP address in a Bash script?
negative_passages.docid: 70085
negative_passages.text: Grepping logs for IP addresses
negative_passages.docid: 71864
negative_passages.text: How to fake source ip-address of a udp-packet?