我用以下技巧拨号，它被称为简洁的isdn on|off #!/bin/bash
# This is based on an old script from Bernhard Hailer
IP_ADDRESS="195.112.123.11"
case "$1" in
on）
echo "Calling ippp0"
/sbin/isdnctrl dial ippp0
# the sleep is important as it gives the PPP time to settle down
echo "Sleep for 8s for PPP handshake"
sleep 8s
/sbin/route add default ippp0
echo "line open - checking...."
# check whether PPP negotiation was successful:
set `ping -qc3 -i1 $IP_ADDRESS 2>/dev/null | grep transmitted`
if [ $4 -gt 0 ];
then
echo "succeeded."
echo "Starting fetchmail daemon"
/usr/bin/fetchmail -d 600 -k -v -a -L /var/log/fetchmail
echo "Flushing mail queue...."
/usr/local/bin/serialmail/maildir2smtp
~alias/pppdir alias-ppp- mail.server.ip.no `hostname`
else
echo "failed!"
/sbin/isdnctrl hangup ippp0
fi
;;
off）
echo -n "Shutting down fetchmail daemon"
/usr/bin/fetchmail --quit
/sbin/isdnctrl hangup ippp0
/sbin/route del default # and delete route
echo "You e off line"
;;
*）
echo -e "aUsage:"
echo "isdn on"
echo "isdn off"
;;
esac
