Using password protected ssh keys
First you need to install sshpass.


Ubuntu/Debian: apt-get install sshpass  
Fedora/CentOS: yum install sshpass  




Example:



sshpass -p "YOUR_PASSWORD" ssh -o StrictHostKeyChecking=no YOUR_USERNAME@SOME_SITE.COM


Custom port example:

sshpass -p "YOUR_PASSWORD" ssh -o StrictHostKeyChecking=no YOUR_USERNAME@SOME_SITE.COM:2400


Notes:


sshpass can also read a password from a file when the -f flag is passed.


Using -f prevents the password from being visible if the ps command is executed.
The file that the password is stored in should have secure permissions.