1  ./pretty --width=64 --both --newline gettysburg.txt 
2  ./pretty -w=64 -b -n gettysburg.txt 
3  ./pretty -w 64 -b -n gettysburg.txt 
4  cat gettysburg.txt | ./pretty --width=64 --both --newline 


1  Four score and seven years ago our fathers brought forth on this 
2  continent,  a new nation, conceived in Liberty, and dedicated to 
3  the proposition that all men are created equal. 
4   
5  Now  we  are engaged in a great civil war, testing whether  that 
6  nation,  or  any nation so conceived and so dedicated, can  long 
7  endure.  We are met on a great  battle-field of that war. We have 
8  come  to  dedicate a portion of  that field,  as a  final  resting 
9  place for those who here gave their lives that that nation might 
10  live.  It  is  altogether fitting and proper that we  should  do 
11  this.

Example 3: Left- and right-justified output.