Automating “enter” keypresses for bash script generating ssh keys

Question

I would like to create script, which simply runs ssh-keygen -t rsa. But how to pass to it 3 times enter?

Answer 1

Agree with Michel Marro except that it needs some more: If the file already exists, it will still be interactive asking if it has to overwrite it.

Use the answer of this question.

yes y | ssh-keygen -q -t rsa -N '' >/dev/null

The redirection to null is necessary to silence the overwrite message.