1 #!/bin/sh 2 3 # Shell script to install your public key on a remote machine 4 # Takes the remote machine name as an argument. 5 # Obviously, the remote machine must accept password authentication, 6 # or one of the other keys in your ssh-agent, for this to work. 7 8 ID_FILE="${HOME}/.ssh/id_rsa.pub" 9 10 if [ "-i" = "$1" ]; then 11 shift 12 # check if we have 2 parameters left, if so the first is the new ID file 13 if [ -n "$2" ]; then 14 if expr "$1" : ".*\.pub" > /dev/null ; then 15 ID_FILE="$1" 16 else 17 ID_FILE="$1.pub" 18 fi 19 shift # and this should leave $1 as the target name 20 fi 21 else 22 if [ x$SSH_AUTH_SOCK != x ] && ssh-add -L >/dev/null 2>&1; then 23 GET_ID="$GET_ID ssh-add -L" 24 fi 25 fi 26 27 if [ -z "`eval $GET_ID`" ] && [ -r "${ID_FILE}" ] ; then 28 GET_ID="cat \"${ID_FILE}\"" 29 fi 30 31 if [ -z "`eval $GET_ID`" ]; then 32 echo "$0: ERROR: No identities found" >&2 33 exit 1 34 fi 35 36 if [ "$#" -lt 1 ] || [ "$1" = "-h" ] || [ "$1" = "--help" ]; then 37 echo "Usage: $0 [-i [identity_file]] [user@]machine" >&2 38 exit 1 39 fi 40 41 # strip any trailing colon 42 host=`echo $1 | sed 's/:$//'` 43 44 { eval "$GET_ID" ; } | ssh $host "umask 077; test -d ~/.ssh || mkdir ~/.ssh ; cat >> ~/.ssh/authorized_keys" || exit 1 45 46 cat <<EOF 47 Now try logging into the machine, with "ssh '$host'", and check in: 48 49 ~/.ssh/authorized_keys 50 51 to make sure we haven't added extra keys that you weren't expecting. 52 53 EOF 54 55
