What? Who needs regular expressions in the age of automation? I do! And maybe you need them too. Personally I think that there are times when regular expressions are the right tool for the job. They have been around for a while and they are still a very useful aid that can be used to solve many problems in the network engineering space. Need to quickly find where ACL is applied, or which config has got the specific IP in it? How about quickly audit config files for the missing configuration line? Regex to the rescue! Contents Introduction Basic syntax...
