I have a file which contains data in key:value format. One of the key:value is IP Address: x.x.x.x. which can contain multiple IP addresses separated by newline. Sample contents are below,
======File contents===
key1: value1
IP Address: x.x.x.x
x.x.x.x
key2: value2
=====file end==========
I want to match the multiline IP address using regex.
Have a look at the https://regex101.com/ website, there you can test your input and regex on the fly, it supports Golang and many more.
If I assume your example looking like this:
======File contents===
key1: value1
IP Address: 10.0.0.1
192.168.0.1
key2: value2
key3: value3
=====file end==========
The most simple resulting regex would look like this:
([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)
In case you have more questions concerning Golang Regex-Package and how to compile the Regexp in use you'll find here all relevant information:
https://gobyexample.com/regular-expressions
And for the syntax more is to be found here: