There are other SSH commands besides the client ssh. Each has its own page.
ssh-keygen - creates a key pair for public key authentication
ssh-copy-id - configures a public key as authorized on a server
ssh-agent - agent to hold private key for single sign-on
ssh-add - tool to add a key to the agent
scp - file transfer client with RCP-like command interface
sftp - file transfer client with FTP-like command interface
sshd - OpenSSH server
The ssh program on a host receives its configuration from either the command line or from configuration files ~/.ssh/config and /etc/ssh/ssh_config.