Add pass with ssh login:
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This is for ubuntu only.

You will need to install this package first:
sudo apt install sshpass

You can now entre this command to log in to ssh server quickly:
sshpass -p “ENTER PASSWORD HERE” ssh puffin@192.168.0.3

Replace ENTER PASSWORD HERE with your password (you can keep qotations) as well have the right user and ip address.

You will need to login manually just (ssh puffin@192.168.0.3) on first login due to needing to add to known hosts.

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You can also add to the ~/.bashrc file as an alias for quick access with this line:
alias pi="sshpass -p “ENTER PASSWORD HERE” ssh puffin@192.168.0.3"

This you will only need to type the command "pi" to log in for exsample.

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Source: https://linuxtechlab.com/how-to-use-ssh-command-with-password-in-single-line/
Year: 2021