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