There are three main working windows in Easy GREP, file list, source viewer and match list.
Get IP addresses from log files
Website log files are written in txt format, so without a professional log analysis tool we can also get some information we need by this GREP tool by analyze the text of log files. Here shows an example of getting IP addresses.

This picture shows all IP adressed were listed out.
Von Loon is a famous author in the field of culture and history. I like reading his book very much, especially the Story of Mankind . In his book, I found a very interesting writing style of Von Loon, the series of "and". You see, in the snapshot below, a part of the book was opened as text, and I input a regular expression, then all his style of many "and" serires were highlighted, and in the matches list you can see what he joined with "and" .

This picture shows Von Loon's "and" in his book 'The
Stroy of Mankind' was extracted by GREP1.1