In this section, you will learn how to create regex statements that check for the letter, number, and optional formatting characters and character combinations.
Matching specific strings of letters and/or numbers works in exactly the same way as in a standard Ctrl + F style search, except that it is case-sensitive by default; the search string abc would match the words crabcake, drabcloth, and labcoat, but would not match the channel ABC or the taxi firm CabCo.
The search string 123 would match any number containing those three digits in that sequence. Log files (and other things that contain autogenerated dates) should be labeled in ISO 8601-compliant format (YYYYMMDD), so 123 would also match any log file from December 30 or 31 each year.
ISO 8601 only specifies the order of the year, month, and date (plus hours, minutes, seconds, and...
