Here you go.
#!/bin/bash
# Mail specific email addresses which are assigned to a certain category.
if ! type -P mailx > /dev/null; then
echo 'E: mailx(1) has to be installed to use this script.' >&2
exit 1
fi
_usage() {
cat >&2 <<- _USAGE_
Usage: ./${0##*/} [ARGS]
-l <address_list> Specify the address list
-t <address_type> Specify the address type (eg. fam, f, w)
-s <email_subject> Specify email's subject
-e <email_file> Specify email's filename
-v Enable verbose mode
-h Display this usage message
_USAGE_
}
if ((! $#)) || [[ $1 = -h ]]; then
_usage
exit 1
fi
while getopts :l:t:s:e:v opts; do
case $opts in
l) addr_list=$OPTARG ;;
t) addr_type=$OPTARG ;;
s) email_subject=$OPTARG ;;
e) email_file=$OPTARG ;;
v) verbose=1
esac
done
if [[ ! $addr_list || ! $addr_type ||
! $email_subject || ! $email_file ]]; then
_usage
exit 1
fi
files_exist=1
for f in "$addr_list" "$email_file"; do
if [[ ! -f $f ]]; then
printf 'E: could not find the file « %s ».\n' "$f" >&2
files_exist=0
fi
done
if ((! files_exist)); then
exit 1
fi
while IFS=' []' read -r addr type _; do
if [[ $type = $addr_type ]]; then
addr_to_mail+=("$addr")
fi
done < "$addr_list"
mailx -s "$email_subject" "${addr_to_mail[@]}" < "$email_file"
if ((verbose)); then
printf 'The content of « %s » has been sent to the following addresses:\n' "$email_file"
printf '%s\n' "${addr_to_mail[@]}"
fi
Usage: ./${0##*/} [ARGS]
-l <address_list> Specify the address list
-t <address_type> Specify the address type (eg. fam, f, w)
-s <email_subject> Specify email's subject
-e <email_file> Specify email's filename
-v Enable verbose mode
-h Display this usage message
_USAGE_
