Some tools like ssh and gpg go out of their way to prevent easy use via command line flags. They often have a good reason for doing this, but there are also som

Some tools like ssh and gpg go out of their way to prevent easy use via command line flags. They often have a good reason for doing this, but there are also sometimes good reasons where this type of protection causes problems. Since the implementers won’t budge on their stance, you need workarounds like expect.