Learn GREP

GREP is a standard command-line utility used to search for specific text patterns in data. This tool is native to unix-like systems (bash/linux/macos). Every serious software engineer needs it in their toolkit. Because it is blazing fast, consumes virtually zero memory, handles massive datasets that crush GUI applications.

flag Description

-i used for case-insensitive searches.

-E Enables Extended Regular Expressions (ERE). e.g. allows the use the pipe symbol | as an OR operator.