grep: Make UNIX easy

Global search for a Regular Expression and Print

Description	Command
Match count	-c
case insensitive search	-i
recursive search	-r
select non-matching lines	-v
show matched text in color	--color
show matched text and next n lines after it	-A n (eg: grep -A 3 "example" demo.txt
show file name along with matched line	-H
exclude hidden directories in search results	--exclude="\.*" (eg: grep -iHr --exclude="\.*" "text" *
show line numbers	-n
search in only specific file types	*.fileType (eg: grep -n "print" *.java)