tell if not writable
currently, after installation, if you run the program, it will not tell, that first a copy should be made. should check if script is writeable, at the very beginning.
user@host:~$ unding
Encrypt a file. Content will be stored in unding.
Attention: File will remain on disk!
unding /path/to/file
Decrypt and display content stored in unding.
unding