OpenSSH : Use SSHPass

	Use SSHPass to automate inputting password on password authentication. This is convenient but it has security risks (leak of password), take special care if you use it.
[1]	Install SSHPass.

root@dlp:~#  apt -y install sshpass

[2]	How to use SSHPass.

# [-p password] : from argument # if initial connection, add [StrictHostKeyChecking=no] debian@dlp:~$  sshpass -p password ssh -o StrictHostKeyChecking=no 10.0.0.51 hostname node01.srv.world # [-f file] : from file debian@dlp:~$  echo 'password' > sshpass.txt debian@dlp:~$  chmod 600 sshpass.txt debian@dlp:~$  sshpass -f sshpass.txt ssh 10.0.0.51 hostname node01.srv.world # [-e] : from environment variable debian@dlp:~$  export SSHPASS=password debian@dlp:~$  sshpass -e ssh 10.0.0.51 hostname node01.srv.world