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martinbutt/ip-validator.bash

Created September 29, 2022 15:46
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BASH IP address (IPv4 and IPv6) validator
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ip-validator.bash
[[ $IP =~ ^([1-9]?[0-9]\.|1[0-9]{2}\.|2[0-4][0-9]\.|25[0-5]\.){3}([1-9]?[0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$|^([0-9a-fA-F]{0,4}:){1,7}[0-9a-fA-F]{0,4}$ ]] || >&2 echo "Error: IP address '${IP}' is not valid"
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