#!/bin/bash

echo You can also try ssh-copy-id user@remotehost

if [ $1 ]
then
  REMOTEHOST=$1
else
  echo "::*** Enter << user@remotehost >> to connect to:"
  read -p "***:: " REMOTEHOST
fi

scp ~/.ssh/id_rsa.pub $REMOTEHOST:~/tmp.pub

ssh $REMOTEHOST "mkdir -p ~/.ssh && chmod 700 ~/.ssh && cat ~/tmp.pub >> ~/.ssh/authorized_keys && chmod 600 ~/.ssh/authorized_keys && rm -f ~/tmp.pub"

echo "~/.ssh/id_rsa.pub is appended to $REMOTEHOST:~/.ssh/authorized_keys"