Match valid IP by grep and regular expression
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Grepping logs for IP addresses
94281
How can I grep for a string containing regex metacharacters like $ and '?
138625
How to get city name based on IP address in java?
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Get IP address with URL string? (Java)
84296
Finding out if an IP address is static or dynamic?
138793
Extracting IP address from a text and store it in a variable
134669
How to extract a value from a string using regex and a shell?
79418
use regular expression in if-condition in bash
79025
grep for expression containing variable
81950
Command line: search and replace in all filenames matched by grep
26904
How can I get my external IP address in a shell script?
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How do I match any character across multiple lines in a regular expression?
127623
Can I use grep matches to execute command?
43255
grep on a variable
3687
Getting the location from an IP address
71826
How do I grep for multiple patterns with pattern having a pipe character?
92530
Use of quotes in GNU grep regular expressions