Linux and bash scripting not to be forgetten in technology proliferated world

Having worked on multiple OS platforms its very easy to get confused with syntax of Linux commands that your were so good at years ago.

Thanks to the following
https://alvinalexander.com/unix/edu/examples/grep.shtml
https://alvinalexander.com/blog/post/linux-unix/unix-linux-shell-script-reference-cheat-sheet

you donot have to google multiple times.
Spend time on this page and you will find yourself recollecting some techniques 

This is best part of being in software community.
Ahamam bramhasmi