How to pipe a 'yes' or 'y' into a program while invoked with 'sudo' in bash?

How to pipe a Y or yes to a program while invoking with sudo? We can type like this yes | command yes | yum update How to pipe the y from yes into a program via sudo like the following? yes| sudo command The y from yes is be passed into command and should go into sudo and sudo shall ask for password normally. How can I do this?