modified someone's sshput command for uploading ssh public keys

sshput-function.sh

sshput () {
	RSAKEY="${HOME}/.ssh/id_rsa.pub"
	DSAKEY="${HOME}/.ssh/id_dsa.pub"

	if [ $# -eq 2 ]; then
		KEY=$1
		if [ ! -r $KEY ]
		then
			echo "'$KEY' does not exist or is not readable"
			return 1
		fi
		SERVER=$2
	else
		if [ -r ${RSAKEY} ]; then
			KEY=$RSAKEY
		elif [ -r ${DSAKEY} ]; then
			KEY=$RSAKEY
		else
			echo "No RSA or DSA key found"
			return 1
		fi
		SERVER=$1
	fi

	if [ $# -lt 1 -o "$1" = "-h" ]; then
		echo Syntax:
		echo "$0 [publickey] [user@]<remotehost>"
		return 1
	fi

	# testing above

	echo "Copying $KEY to $SERVER"

	cat $KEY | \
		ssh $SERVER 'mkdir -p -m 0700 ${HOME}/.ssh && \
		cat >> $HOME/.ssh/authorized_keys && \
		chmod 0600 $HOME/.ssh/authorized_keys'

	if [ $? -eq 0 ]; then
	    echo "Public key installed on $SERVER"
	    return 0
	else
	    echo "Sorry, an error occurred!"
	    return 1
	fi
}

sshput.sh

#!/bin/sh
# sshput [publickey] [user@]<remotehost>
#
# modified by Jeremy Knope <jerome@buttered-cat.com> for optional key specification & automatic rsa/dsa attempts
#
# Puts your local RSA/DSA public key into the .ssh/authorized_keys 
# on a remote machine.  This should allow you to login without
# needing a password.
#
# This software comes with no guarantees whatsoever, and is yours to 
# do with as you will. I'd be grateful if you feed any generally-useful 
# improvements back to me, for the benefit of others.
#
#                Quentin Stafford-Fraser  http://www.qandr.org/quentin

RSAKEY="${HOME}/.ssh/id_rsa.pub"
DSAKEY="${HOME}/.ssh/id_dsa.pub"

if [ $# -eq 2 ]
then
	KEY=$1
	if [ ! -r $KEY ]
	then
		echo "'$KEY' does not exist or is not readable"
		exit 1
	fi
	SERVER=$2
else
	if [ -r ${RSAKEY} ]
	then
		KEY=$RSAKEY
	elif [ -r ${DSAKEY} ]
	then
		KEY=$RSAKEY
	else
		echo "No RSA or DSA key found"
		exit 1
	fi
	SERVER=$1
fi

if [ $# -lt 1 -o "$1" = "-h" ]
then
    echo Syntax:
    echo "$0 [publickey] [user@]<remotehost>"
    exit 1
fi

# testing above

echo "Copying $KEY to $SERVER"

cat $KEY | \
  ssh $SERVER 'mkdir -p -m 0700 ${HOME}/.ssh && \
    cat >> $HOME/.ssh/authorized_keys && \
    chmod 0600 $HOME/.ssh/authorized_keys'

if [ $? -eq 0 ]
then
    echo "Public key installed on $SERVER"
    exit 0
else
    echo "Sorry, an error occurred!"
    exit 1
fi