des3.sh

#!/bin/bash
#program that decrypts and encrypts a file using des3

#encrypts a file and save it
if [ "$1" = "-e" ]; then
	openssl des3 < $2 > $2.des3
fi

#encrypts a file and erase the original
if [ "$1" = "-ee" ]; then
	openssl des3 < $2 > $2.des3
	rm $2
fi

#decrypt file and show it
if [ "$1" = "-ds" ]; then
	openssl des3 -d < $2.des3
	echo "" #echo new line 
fi

#decrypt file and write it
if [ "$1" = "-dw" ]; then
	openssl des3 -d < $2.des3 > $2
fi