cat ~/.ssh/id_rsa.pub | ssh [email protected] 'cat >> .ssh/authorized_keys'

http://linuxproblem.org/art_9.html

I use this to quickly (in one line) copy my own id_rsa.pub to remote server so I can connect w/out using my password.

Copy my id_rsa.pub to remote server authorized_keys via ssh

linux, ssh

Bash