bash command grep

[taitruong]

Goal: write a getting started manual, create a challenge

https://www.gnu.org/software/grep/manual/grep.html
http://man7.org/linux/man-pages/man1/grep.1.html
https://en.wikipedia.org/wiki/Grep

General bash references:

• Advanced Bash-Scripting Guide
• Bash Guide for Beginners

Research for other useful resources, read and learn, write down you findings, create a new challenge.