SSH Key kopieren

    $ cat ~/.ssh/*.pub | ssh user@remote-system 'umask 077; cat >>.ssh/authorized_keys'

oder als shell-Script nutzten

    #!/bin/sh

    # Shell script to install your identity.pub 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/identity.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" ; then
          ID_FILE="$1"
        else
          ID_FILE="$1.pub"
        fi
        shift         # and this should leave $1 as the target name
      fi
    else
      if [ x$SSH_AUTH_SOCK != x ] ; then
        GET_ID="$GET_ID ssh-add -L"
      fi
    fi

    if [ -z "`eval $GET_ID`" ] && [ -r "${ID_FILE}" ] ; then
      GET_ID="cat ${ID_FILE}"
    fi

    if [ -z "`eval $GET_ID`" ]; then
      echo "$0: ERROR: No identities found" >&2
      exit 1
    fi

    if [ "$#" -lt 1 ] || [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
      echo "Usage: $0 [-i [identity_file]] [user@]machine" >&2
      exit 1
    fi

    { eval "$GET_ID" ; } | ssh $1 "umask 077; test -d .ssh || mkdir .ssh ; cat >> .ssh/authorized_keys" || exit 1

    cat <<EOF
     Now try logging into the machine, with "ssh '$1'", and check in:

     .ssh/authorized_keys

     to make sure we haven't added extra keys that you weren't expecting.

    EOF

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