Introduction to Grok and Reql This page provides introduction to Grok and its close cousin, QL/JGrok. Grok/QL operators Description of operators available in Grok and QL. Built-in commands Commands built into Grok, by category and alphabetically, with application examples. Writing scripts A guide to writing scripts in Grok. Syntax guide A guide to Grok syntax, including conditional statements and loops. TA and RSF formats Description of TA (Tuple Attribute) and RSF (Rigi Standard Format) files that Grok and QL use.