add ssh key to remote host

gistfile1.bat

#!/bin/bash
 
# Variables
USER_AND_HOST=$1
 
line="---------------------------------------------"
 
echo "REGISTERING RSA PUBLIC KEY WITH HOST: $REMOTE_HOST"
 
echo $line
 
echo "This script will prompt during the process since"
echo "you have not yet installed the RSA key with the"
echo "server.  Please be patient; this should be done"
echo "shortly."
 
echo $line
 
# Ensure the RSA Public Key exists.
if [ ! -e ~/.ssh/id_rsa.pub  ]
then
 
    echo "No public SSH key found..."
 
    echo "Generating SSH key.  Follow the prompts:"
 
    echo $line
 
    ssh-keygen -t rsa
 
    echo $line
 
    if [ ! $? ]
    then
 
        echo "Key Generation was not successful.  Exiting."
 
        exit 1
    fi
fi
 
echo $line
 
echo "Ensuring remote .ssh directory exists."
echo "You will need to enter the remote host's password."
 
ssh $USER_AND_HOST "mkdir -p ~/.ssh/"
 
echo $line
 
echo "Copying key to remote host."
echo "You will need to enter the remote host's password."
 
echo $line
 
scp ~/.ssh/id_rsa.pub "$USER_AND_HOST:~"
 
echo $line
 
echo "Adding the key to the set of 'authorized_keys'..."
echo "You will need to enter the remote host's password."
 
ssh $USER_AND_HOST "cat id_rsa.pub >> .ssh/authorized_keys"
 
echo $line
 
echo "Cleaning up key and testing SSH access..."
echo "IF YOU HAVE TO ENTER A PASSWORD, IT'S FAILED!!!!"
 
ssh $USER_AND_HOST "rm ~/id_rsa.pub"
 
RESULT=$?
 
echo $line
 
if [ RESULT ]
then
   echo "Your public key was successfully added to the host."
else
   echo "Epic fail mate!  Your key was NOT added to the host."
fi
 
echo $line
 
echo "Ensure you can access the server using the following command:"
echo "ssh $USER_AND_HOST \"ls -lah ~/.ssh\""