____  _____    _    ____  __  __ _____     
    |  _ \| ____|  / \  |  _ \|  \/  | ____|    
    | |_) |  _|   / _ \ | | | | |\/| |  _|      
 _ _|  _ <| |___ / ___ \| |_| | |  | | |___ _ _ 
(_|_)_| \_\_____/_/   \_\____/|_|  |_|_____(_|_)
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Author	: Nasser Alshammari
Email 	: nalshamm@cs.odu.edu
Date 	: 09-18-2009
Subject : Shell Programming Assignment
Files	: umail.sh, README
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Description : This shell program takes the name of one or more of the existing group names in the UNIX OS of the CS department and according to that it creates two files (groupEmails, groupNames).
The first file contains the login names of the supplied group.
The second file contains the login names and the full user name of that group.
if there are no passed arguments, the program will create the files for 5 groups (student, faculty, grad, staff and guest).
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