base64 encode string from a terminal?

Question

OS X 10.8.3 C++

We have base64 encode and decode functions in our code.

However, I want to base64 encode a string from my terminal and use it in my code so our functions can decode it when it needs to be used.

How does one base64 encode a string from a terminal?

Answer 1

Using the base64 command, sensibly enough:

# echo Hello | base64
SGVsbG8K
# echo SGVsbG8K | base64 -D
Hello

Answer 2

From here :

base64 command is available by default on my OS X 10.9.4.

Encoding: base64 <<< string .
Decoding: base64 -D <<< string .