I am sure you have spent a little intimate time with EnCase doing keyword searches, so you know that EnCase has basic GREP capabilities. This is a powerful feature that allows for searches to be performed with patterns that can eliminate false positive hits. Recently, we hosted a webinar with guest Suzanne Widup, describing some techniques and benefits of using GREP in EnCase.
GREP is a term that comes from the Unix world long ago. It stands for Globally search for Regular Expressions and Print. This command line utility was used to search through data and print out results that matched the given pattern. Because of the popularity of the tool, the name has become synonymous with Regular Expressions (Regex). Though there is a defined standard, POSIX, the syntax of patterns used in Regex actually varies quite wildly depending on the platform engine and programming language that is being used. EnCase is no exception. In homage to our habit of prefixing our product names with “En”, I jokingly refer to our syntax of regex as “EnGrep.”