ssh-send-key

#! /bin/zsh

function usage {
  echo "usage: $0 pubkey host"
  exit 1
}

if [[ $# -ne 2 ]]; then
  usage
fi

pubkey=$1
host=$2

ssh $host 'test -d $HOME/.ssh || mkdir -m 0700 $HOME/.ssh && test -f $HOME/.ssh/authorized_keys || touch $HOME/.ssh/authorized_keys && test -L $HOME/.ssh/authorized_keys2 || rm -f $HOME/.ssh/authorized_keys2 && ln -fs $HOME/.ssh/authorized_keys $HOME/.ssh/authorized_keys2 && cat >>$HOME/.ssh/authorized_keys' <$pubkey