JavaScript Regular Expressions

** RG Regular Expressions **

Regexr | Regular Expressions Info | Medium Regular Expressions | Medium regex Cookbook | Ryans Tutorial Regular Expressions

w3 Regex | Code Academy Regex | ** Rexegg ** | Scrimba Regular Expressions | * Loggly Regexes Bad Better Best *

Awk and Grep
The Unix School | Stack Overflow Awk and grep Together | Unix Stack Exchange Grep and Awk | YT Using awk in Linux when grep is not enough | Linux Hunt Awk Examples