no_param=$#

if [ ${no_param} -ne 1 ]
then
	echo "Please execute the script with i/p as i(single) or a(all),"
	echo "`basenmae $0` i or a "
	exit 1
fi

case $1
in
"a") 	for i in $(ls -1 <input dir>| grep -v "^\.")
	do
	mv <input dir>/$i  <destination dir>	
	done
	;;
"i")    echo "please type the file you want to move"
	read input_file
	if [ ! -f "<input dir>/${input_file}" ]
	then
		echo "${input_file} doesn't exist."
		exit 1
	else
		mv <input dir>/${input_file} <destination dir>	

	fi
	;;
*)	echo "please enter your input correctly."
	exit 1
	;;
esac