Automate uploading SSH key to a remote host

setremotekey

#!/bin/sh
#
# Name          : setremotekey
# Description   : Automate uploading SSH key to a remote host
# Installation  : Save this as 'setremotekey' to '/usr/local/bin/'
#                 and then make the file executable with 'chmod +x setremotekey'
# Usage         : setremotekey username@host
# Source        : http://hints.macworld.com/article.php?story=2007091814022049
# Author        : See source above. Modified by bpk/lfd.

KEY="$HOME/.ssh/id_rsa.pub"

if [ ! -f $KEY ];then
	echo "Private key not found at $KEY."
	echo "Please create it with \"ssh-keygen -t rsa\"."
	echo "Once created, re-run this script."
	exit
fi

if [ -z $1 ];then
	echo "Usage: $0 username@host"
	exit
fi

echo "Putting your key on $1... "

ssh -q $* "umask 0077; mkdir -p ~/.ssh ; echo "`cat $KEY`" >> ~/.ssh/authorized_keys"
echo "Success. You can now access this server without a password."