Mike Lockwood | 1305e95 | 2011-12-07 08:17:59 -0800 | [diff] [blame] | 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 | |