Simple example for creating your own linux command | learn to make linux command | simple example of getopts command

#@program: To parse a commandline arguments 
#          function with the help of getopts
#@author : Binoy Wilson
#@Date   : 4th Jan, 2012

while getopts cdv: OPTION
do
	case $OPTION
	in
		c)clear;;	#option to clear screen
		d)ls;;		#option to list files in the current directory
		v)vi $OPTARG;;  #option To create a file as requiresd in vi
		*)echo "sorry wrong commands arguments 
			entered -c -d -v are only accepted";;
	esac
done