yscan

#!/bin/sh
## $Id: yscan,v 1.3 2015/04/19 17:53:27 yozo Exp $
##

SHOW_FROM="show_from"
SHOW_DATE="show_date"
SHOW_SUBJECT="show_subject"

help(){
  echo "usage: ${progname} messageID"
}

## main

flag_debug=0
FILE=
FILEbasename=

case "$1" in
  -h*)
    help
    exit 0
    break
    ;;
  -debug)
    flag_debug=1
    shift
    ;;
esac

LIST=
if [ -n "$*" ]; then
  LIST=`mhlist -noheader -part 0 $* | egrep -v '^     ' | awk '{print $1;}'`
fi

if [ ${flag_debug} -eq 1 ]; then
    echo "args: $*"
    echo "LIST: ${LIST}"
fi

## if nothing specified, we assume the current message.
if [ -z "${LIST}" ]; then
    LIST="cur"
fi

for i in ${LIST}
do
  FILE=`mhpath "${i}"`
  if [ ! -f "${FILE}" ]; then
    ( echo "${FILE} not found." 1>&2 )
    exit 20
  fi
  FILEbasename=`basename "${FILE}"`
  from=`cat "${FILE}" | "${SHOW_FROM}"`
  date=`cat "${FILE}" | "${SHOW_DATE}"`
  subject=`cat "${FILE}" | "${SHOW_SUBJECT}"`

  echo "${FILEbasename}  ${date} ${from} ${subject}"

done

########