How do I use cat to base64 encode stdin on the fly with openssl?

Question

The following command works for encoding stdin using echo:

echo "abc" | openssl enc -base64

This command also works for substituting characters in stdin using cat:

cat | sed 's/a/b/g'

However, the following command, which should encode stdin using cat does not meet my needs, because it doesn't display the encoded value every time I hit return.

cat | openssl enc -base64

How do I encode stdin on-the-fly using cat?

Solution

If you type

cat | openssl enc -base64

and then press Ctrl+D then it will encode everything you just typed.

Comments

[David Schwartz]

"Don't work" is not a very good problem description.

[nick]

While that works, I need a continues result. IE I keep typing and every time I hit return, I get an encoded value out

[Scott - Слава Україні]

@nick: If you want to get satisfactory answers, you should edit your question to add details like this.