Add ssh key to server

add-ssh-key.sh

#!/bin/bash

if [[ $(whoami) == "root" ]]; then
    echo "Please don't run this script as sudo user"
    exit 1
fi

username=$(whoami)

while [[ -z "$sshPublicKey" ]]
do
    echo "Please generate a ssh key for the new user in your computer, use this command:"
    echo "ssh-keygen -t rsa -b 4096 -C ${newHostname}-key -f ${newHostname}-key"
    echo "\n"
    echo "Please paste the contents of the public key(${newHostname}-key.pub) here and press enter: (Can't be empty)"
    read -r  sshPublicKey
done

echo "$sshPublicKey" >> "/home/$username/.ssh/authorized_keys"

echo "Restarting ssh service..."
sudo service ssh restart

clear
echo "Key added successfully"