Copy your public key to remote machine for ssh without password

ssh_without_password.sh

#!/usr/bin/env bash
### Script to store ssh_key on remote machine.
### No prompt for password :)

# Replaced with ssh-copy-id :shrug:

if [[ "$#" -ne 1 ]]; then
    echo "Interactive help:"
    echo "-----------------"
    echo " --- Script to store public ssh key to remote machine ---"
    echo " > ./prepare_env [IP]"
    echo "-----------------"
    echo "Example:"
    echo " > ./prepare_env 172.20.13.4"
    echo " > ./prepare_env 172.20.13.213"
    echo ""
    exit 1
fi

CHECK_SSH=$(cat ~/.ssh/id_rsa.pub &> /dev/null)
if [[ $? -eq 1 ]]; then
    echo "Please create SSH key."
    exit 1
fi

USERNAME='root'
read -s -p "Enter remote's $USERNAME password: " ROOTPASS

sshpass -p ${ROOTPASS} ssh ${USERNAME}@$1 mkdir -p .ssh
PUBLIC_KEY=$( cat ~/.ssh/id_rsa.pub )
sshpass -p ${ROOTPASS} ssh ${USERNAME}@$1 "echo ${PUBLIC_KEY} >> .ssh/authorized_keys"

exit 0