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#!/usr/bin/env bash
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#
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# $Id$
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# Author: Gerwin Klein, TU Muenchen
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# License: GPL (GNU GENERAL PUBLIC LICENSE)
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#
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# DESCRIPTION: send email with text attachments.
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# (works for "mail" command of SunOS 5.8)
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#
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PRG="$(basename "$0")"
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MIME_BOUNDARY="==PM_=_37427935"
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function usage()
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{
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echo
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echo "Usage: $PRG subject recipient <body> [<attachments>]"
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echo
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echo " Send email with text attachments. <body> is a file."
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echo
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exit 1
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}
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function fail()
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{
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echo "$1" >&2
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exit 2
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}
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#
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# print_attachment <file>
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#
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# print mime "encoded" <file> to stdout (text/plain, 8bit)
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#
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function print_attachment()
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{
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local FILE=$1
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local NAME=${FILE##*/}
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cat <<EOF
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--$MIME_BOUNDARY
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Content-Type: text/plain
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Content-Transfer-Encoding: 8bit
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Content-Disposition: attachment; filename="$NAME"
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EOF
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cat $FILE
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echo
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}
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#
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# print_body subject <message-file> [<attachments>]
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#
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# prints mime "encoded" message with text attachments to stdout
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#
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function print_body()
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{
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local SUBJECT=$1
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local BODY=$2
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shift 2
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cat <<EOF
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Subject: $SUBJECT
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Mime-Version: 1.0
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Content-Type: multipart/mixed; boundary="$MIME_BOUNDARY"
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--$MIME_BOUNDARY
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Content-Type: text/plain
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Content-Transfer-Encoding: 8bit
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EOF
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cat $BODY
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echo
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for a in $@; do print_attachment $a; done
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echo "--$MIME_BOUNDARY--"
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echo
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}
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## main
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# argument checking
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[ "$1" = "-?" ] && usage
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[ "$#" -lt "3" ] && usage
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SUBJECT="$1"
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TO="$2"
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BODY="$3"
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shift 3
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[ -r "$BODY" ] || fail "could not read $BODY"
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print_body "$SUBJECT" "$BODY" $@ | mail -t "$TO"
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