Push ssh keys to a new host

pushkey

#!/bin/sh

# Check if an argument was given.
if [ ! "${1}" ] ; then
        echo "No hostname provided" > /dev/stderr
        exit 1
fi

if [ ! "${2}" ]; then
        KEYFILE=~/.ssh/id_rsa.pub
else
        KEYFILE=${2}
fi

if [ ! -f ${KEYFILE} ] ; then
        echo "${KEYFILE} does not exist" > /dev/stderr
        exit 1
fi

cat ${KEYFILE} | ssh -q "${1}" i\
        " \
        if [ ! -d ~/.ssh/ ] ; \
        then \
                mkdir ~/.ssh ; \
        fi ; \
        chmod 700 ~/.ssh/ ; \
        cat - >> ~/.ssh/authorized_keys ; \
        chmod 600 ~/.ssh/authorized_keys \
        "

exit $?