Many Ways To Grep File Content

So not too long ago I have posted on twitter

This spin to a few other way to do grep.

A few have suggested on IRC and facebook, the i parameter is to make keyword not case sensitive.

grep -iR keyword directory 

Another suggestion on IRC. 

grep -iR --exclude=file-to-ignore keyword directory

Another tweet i have receive is,

Then the last one I discovered on google is ack-grep

ack-grep keyword directory

and again, -i make case insensitive search.

ack-grep -i keyword directory

ack-grep output is nicer, and automatically ignore binary. It is slightly different than grep. But both get the job done., to me anyway