#!/bin/sh ## mail2sms a shell script# Matt Foster # matt@molnir.demon.co.uk## Mail to SMS gateway script, version 1.0# By Andy Hawkins (andy@gently.demon.co.uk)/usr/bin/cp /dev/null /tmp/header.$$ELINE=0while [ $ELINE -lt 3 ]do  read LINE  echo "$LINE" >> /tmp/header.$$  if [ "$LINE" = "" ]  then    ELINE=3  else    ELINE=0  fidoneSENDER=`head -n 1 /tmp/header.$$ | awk '{print $2}'`TARGET=`grep ^Subject: /tmp/header.$$ | awk '{print $2}'`ELINE=0while [ $ELINE -lt 2 ]do  read LINE  echo "$LINE" >> /tmp/body.$$  if [ "$LINE" = "" ]  then    let ELINE=ELINE+1  else    ELINE=0  fidoneRETRY=5SENT=0while [ $RETRY -gt 1 ] && [ $SENT -eq 0 ]do  MSG=`cat /tmp/body.$$`  /usr/bin/sms_client $TARGET "$MSG" >> /tmp/sms.log  case $? in   0) /bin/mailx -s "SMS success to $TARGET" $SENDER < /dev/null       SENT=1;;   1) echo "Message too long" | \           /bin/mailx -s "SMS failure to $TARGET" $SENDER           SENT=1;;              3) echo "Invalid Service Name" | \           /bin/mailx -s "SMS failure to $TARGET" $SENDER      SENT=1;;   4)      echo "Unknown number / name $TARGET" | \           /bin/mailx -s "SMS failure to $TARGET" $SENDER      SENT=1;;   *)      sleep 10      let RETRY=RETRY-1;;  esacdoneif [ $SENT -eq 0 ]then    echo "Unable to send message after 5 attemps, please try later" | \        /bin/mailx -s "SMS failure to $TARGET" $SENDERexitfirm /tmp/header.$$rm /tmp/body.$$