How do you, via a script, specify the password, and a command to run, once an su/sudo/ssh has been executed?
su — password
TODO: figure this out
su — command
su -c command
sudo — password
As long as NOPASSWD is specified in the sudoers file, a password isn't needed.
Otherwise, you can do sudo -S, and pipe the password in to stdin.
(better options are: NOPASSWD; any PAM module, such as pam_ssh_agent_auth)
sudo — command
sudo -u user command
ssh — password
If it's OpenSSH on the client end, you can use the $SSH_ASKPASS trick.
If it's PuTTY on the client end, use -pw.
(better options are: 1) public/private keys, and 2) use ssh-agent)
ssh — command
ssh [user@]hostname command