CODEWITHSUNDEEP
ruby
user376304
user376304

Reputation: 77

Only pull IP Address from a line of text

I've got a script that searches through a logfile for a specific trigger, and then pulls out the line when it's found. For example, this is a line I'm looking for:

7/2/10 9:24:12 AM puppetmasterd[63092] Could not resolve 10.13.1.190: no name for 10.13.1.190

It saves this line into a variable "line", but I'd like to be able to extract only the IP Address.

Our IP Addresses all start with 10.13 - is there an easy way to search for that in this variable and then isolate ONLY the IP address into a variable?

Upvotes: 2

Views: 1115

Answers (2)

Piskvor left the building
Piskvor left the building

Reputation: 92792

matches = line.scan(/10\.13\.[12]?[0-9]?[0-9]\.[12]?[0-9]?[0-9]/);

Upvotes: 2

ladenedge
ladenedge

Reputation: 13429

You want to read about regular expressions on Ruby. Your specific problem is fairly easy, so it would be a good learning exercise. (Try the tutorial if the first link is too advanced!)

Upvotes: 0

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