#!/bin/sh# Shell script to install your public key on a remote machine# Takes the remote machine name as an argument.# Obviously, the remote machine must accept password authentication,# or one of the other keys in your ssh-agent, for this to work.ID_FILE="${HOME}/.ssh/id_rsa.pub"if [ "-i" = "$1" ]; then shift # check if we have 2 parameters left, if so the first is the new ID file if [ -n "$2" ]; then if expr "$1" : ".*\.pub" > /dev/null ; then ID_FILE="$1" else ID_FILE="$1.pub" fi shift # and this should leave $1 as the target name fielse if [ x$SSH_AUTH_SOCK != x ] && ssh-add -L >/dev/null 2>&1; then GET_ID="$GET_ID ssh-add -L" fifiif [ -z "`eval $GET_ID`" ] && [ -r "${ID_FILE}" ] ; then GET_ID="cat ${ID_FILE}"fiif [ -z "`eval $GET_ID`" ]; then echo "$0: ERROR: No identities found" >&2 exit 1fiif [ "$#" -lt 1 ] || [ "$1" = "-h" ] || [ "$1" = "--help" ]; then echo "Usage: $0 [-i [identity_file]] [user@]machine" >&2 exit 1fi{ eval "$GET_ID" ; } | ssh ${1%:} "umask 077; test -d .ssh || mkdir .ssh ; cat >> .ssh/authorized_keys" || exit 1cat <<EOFNow try logging into the machine, with "ssh '${1%:}'", and check in: .ssh/authorized_keysto make sure we haven't added extra keys that you weren't expecting.EOF