How you can use regexes to make search more powerful and reduce the number of irrelevant entries it returns.
regular expressions
Stop wasting time wading through hundreds of hits: refine your text searches using regex, as supported by many Mac apps.
Different search and filter tools have different purposes – as demonstrated by exploring the log using Consolation 3. Regex at work!
Regular Expressions turn search terms into a programming language. Are they just for Unix wizards?
The Eclectic Light Company 