text file compression

[srees18]

I was asked to compress a text file using a best algorithm;

this is the original file:
---------------------------------------
AGXY CDFR ABFGRX OPDABC SKLAWE
ABC FGTR OBHJKLABC XYZABC EFGH
---------------------------------------


I appreciate any hints.

Sree

[Luuk]

compressing small file will almost always increase it's size

ll -Sr testf*
-rw-r--r-- 1 luuk users  62 mei 25 21:50 testfile
-rw-r--r-- 1 luuk users  84 mei 25 21:50 testfile.gz
-rw-r--r-- 1 luuk users  87 mei 25 21:50 testfile.bz2
-rw-r--r-- 1 luuk users 171 mei 25 21:53 testfile.7z
-rw-r--r-- 1 luuk users 223 mei 25 21:50 testfile.zip