Exchange receipients.sh

#!/bin/sh

### The minimal lines virtual.txt must have to generate the db
MINLINES="50"
### The url to the receipients file
URL=""

wget "$URL" -qO /tmp/virtual.txt

if [ -f /tmp/virtual.txt ]; then
   LINES=`cat /tmp/virtual.txt | wc -l`
   if [ "$LINES" -gt "$MINLINES" ]; then
      dos2unix /tmp/virtual.txt
      sed '/^\#/d; /^$/d' /tmp/virtual.txt > /etc/postfix/exchange_receipients
      postmap /etc/postfix/exchange_receipients
   fi
fi