#!/bin/sh -f

progname="`/usr/bin/basename $0`"
echo -n "${progname}: $1: Are you sure? [y]: "
# echo "${progname}: $1: Are you sure? [y]: \c"
ifs_old="$IFS"
IFS=''
read ans
IFS="$ifs_old"
case $ans in
  '' | y* | Y* )
    ;;
  * )
    exit 1
    ;;
esac
exec "$@"