This is a quick starter-template that could send SMS or email alerts from a jailbroken iOS device. Think "text-message forwarding" and/or related functionality.

smsdb-alert.sh

#/bin/bash

TZ='America/Chicagp'

/usr/bin/sqlite3 /var/mobile/Library/SMS/txt.db <<!
.mode list
.separator |
.out txt.dmp
SELECT
  m.rowid as RowID,
  DATETIME(date + 978307200, 'unixepoch', 'localtime') as Date,
  h.id as "Phone Number", m.service as Service,
  CASE is_from_me
    WHEN 0 THEN "Received"
    WHEN 1 THEN "Sent"
    ELSE "Unknown"
  END as Type,
  CASE
    WHEN date_read > 0 then DATETIME(date_read + 978307200, 'unixepoch')
    WHEN date_delivered > 0 THEN DATETIME(date_delivered + 978307200, 'unixepoch')
    ELSE NULL END as "Date Read/Sent",
  text as Text
FROM message m, handle h
WHERE h.rowid = m.handle_id
ORDER BY m.rowid DESC LIMIT 1;
!

STAMP=$(awk -F "|" '{print $2}' txt.dmp)
RECEIVED=$(date --date="$STAMP" "+%a %x [%I:%M %p]")
NUMBER=$(awk -F "|" '{print $3}' txt.dmp)
SERVICE=$(awk -F "|" '{print $4}' txt.dmp)
MESSAGE=$(awk -F "|" '{print $7}' txt.dmp)

# this uses a 3rd party app available in Cydia:
/usr/bin/sendsms [email address or phone number] "
==========================================
$SERVICE Received $RECEIVED
==========================================
SENDER:  <$NUMBER>
------------------------------------------

MESSAGE:
$MESSAGE

------------------------------------------
==========================================
<a href=\"mailto:[email protected]\" target=\"_blank\">Respond?</a>
==========================================
"