ssh-copy-id revision 207311 
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
8ID_FILE="${HOME}/.ssh/id_rsa.pub"
9
10if [ "-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 $1 as the target name
20  fi
21else
22  if [ x$SSH_AUTH_SOCK != x ] && ssh-add -L >/dev/null 2>&1; then
23    GET_ID="$GET_ID ssh-add -L"
24  fi
25fi
26
27if [ -z "`eval $GET_ID`" ] && [ -r "${ID_FILE}" ] ; then
28  GET_ID="cat ${ID_FILE}"
29fi
30
31if [ -z "`eval $GET_ID`" ]; then
32  echo "$0: ERROR: No identities found" >&2
33  exit 1
34fi
35
36if [ "$#" -lt 1 ] || [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
37  echo "Usage: $0 [-i [identity_file]] [user@]machine" >&2
38  exit 1
39fi
40
41{ eval "$GET_ID" ; } | ssh $1 "umask 077; test -d .ssh || mkdir .ssh ; cat >> .ssh/authorized_keys" || exit 1
42
43cat <<EOF
44Now try logging into the machine, with "ssh '$1'", and check in:
45
46  .ssh/authorized_keys
47
48to make sure we haven't added extra keys that you weren't expecting.
49
50EOF
51