Find IPv4 Address in String
[Regex]::Matches($string, '(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)').ValueMatch IP v4 addresses
PS C:\> $string = 'Reply from 8.8.8.8: bytes=32 time=11ms TTL=54'
>> [Regex]::Matches($string, '(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)').Value
8.8.8.8
