pr – convert text files for printing

The following shows a command line session with pr 
command which helps in displaying contents of a file
in shell scripts.

$cat lkg.txt 
A for Apple
B for Ball
C for Cat
D for Donkey
E for Elephant
F for Fox
G for Goat
H for Horse
I for Insect
$pr -l 10 lkg.txt 
A for Apple
B for Ball
C for Cat
D for Donkey
E for Elephant
F for Fox
G for Goat
H for Horse
I for Insect
$