linux ppp拨号脚本

#!/bin/sh #quectel-pppd devname apn user password echo "quectel-pppd options in effect:" QL_DEVNAME=/dev/ttyUSB3 QL_APN=3gnet QL_USER=user QL_PASSWORD=passwd if [ $# -ge 1 ]; then QL_DEVNAME=$1 echo "devname $QL_DEVNAME # (from command line)" else echo "devname $QL_DEVNAME # (default)" fi if [ $# -ge 2 ]; then QL_APN=$2 echo "apn $QL_APN # (from command line)" else echo "apn $QL_APN # (default)" fi if [ $# -ge 3 ]; then QL_USER=$3 echo "user $QL_USER # (from command line)" else echo "user $QL_USER # (default)" fi if [ $# -ge 4 ]; then QL_PASSWORD=$4 echo "password $QL_PASSWORD # (from command line)" else echo "password $QL_PASSWORD # (default)" fi CONNECT="'chat -s -v ABORT BUSY ABORT \"NO CARRIER\" ABORT \"NO DIALTONE\" ABORT ERROR ABORT \"NO ANSWER\" TIMEOUT 30 \ \"\" AT OK ATE0 OK ATI\;+CSUB\;+CSQ\;+CPIN?\;+COPS?\;+CGREG?\;\&D2 \ OK AT+CGDCONT=1,\\\"IP\\\",\\\"$QL_APN\\\",,0,0 OK ATD*99# CONNECT'" pppd $QL_DEVNAME 115200 user "$QL_USER" password "$QL_PASSWORD" \ connect "'$CONNECT'" \ disconnect 'chat -s -v ABORT ERROR ABORT "NO DIALTONE" SAY "\nSending break to the modem\n" "" +++ "" +++ "" +++ SAY "\nGood bay\n"' \ noauth debug defaultroute noipdefault novj novjccomp noccp ipcp-accept-local ipcp-accept-remote ipcp-max-configure 30 local lock modem dump nodetach nocrtscts usepeerdns &