grep Getting started with grep Grep Context Control

Example

Given a file Sample called movieslist.

Troy
Gladiator
Robin Hood
King Arthur
BraveHeart
The Last Samurai

Normal grep returns

grep "Gladiator" movieslist
Gladiator

Now,using grep to print the below or above lines of the file.

To print the below line

grep -A 1 Gladiator movieslist 
Gladiator
Robin Hood

To print the above line

grep -B 1 Gladiator movieslist 
Troy
Gladiator

To print both

grep -C 1 Gladiator movieslist 
Troy
Gladiator
Robin Hood