如何从终端启用/禁用移动宽带？
我在Natty Narwhal上使用中兴USB调制解调器。 每件事情都很好，但有时会断开连接。 我想写一个Shell脚本，如果它断开连接或连接5秒后收到的数据小于20 KB，则重新连接移动宽带。
所以我的问题是如何启用/禁用移动宽带？ 如何检查收到的数据？ 以及如何启用/禁用网络服务？
注意：只有终端命令或者如果你能写脚本，我会非常感激。
打开终端窗口并输入：
sudo gedit /etc/init.d/mobile-broadband-connect 然后复制并粘贴（根据您的需要进行更改）：
注意：将
#!/bin/bash case "$1" in start) echo "Starting Mobile Broadband Connection." while true; do # testing...to see if gsm is on the list of active devices LC_ALL=C nmcli -t -f TYPE,STATE dev | grep -q "^gsm:disconnected$" if [ $? -eq 0 ]; then break else # not connected, sleeping for a second sleep 1 fi done # now once GSM modem shows up, run these commands nmcli -t nm wwan on nmcli -t con up id ;; stop) echo "Stopping Mobile Broadband Connection." nmcli -t con down id nmcli -t nm wwan off ;; status) # Check to see if the process is running with Network Manager dev status nmcli -p dev ;; *) echo "Mobile Broadband Startup Service" echo $"Usage: $0 {start|stop|status}" exit 1 esac exit 0
更改此文件的权限以便执行：
sudo chmod +x /etc/init.d/mobile-broadband-connect
要运行此脚本有一个服务，请执行以下操作：
sudo update-rc.d mobile-broadband-connect defaults
该脚本已注册为系统启动服务，因此您可以使用以下命令启动，停止或检查脚本的状态：
sudo service mobile-broadband-connect start sudo service mobile-broadband-connect stop sudo service mobile-broadband-connect status
重新启动以完成安装和自动连接。
- 重新启动系统以完成安装。
- 重启后，USB设备激活前最多需要60秒。
- 激活时 – 移动宽带连接将被激活并自动连接。
完成……
我创建了一个shell脚本，如下所示，并将其放在Startup Applications ，它就像一个魅力！ 我对此很满意，但如果你能做得更好，我会非常感激。
#!/bin/bash while true; do LC_ALL=C nmcli -t -f TYPE,STATE dev | grep -q "^gsm:disconnected$" if [ $? -eq 0 ]; then #jdownloader is still in the download status so stop it because #internet is disconnected and jdownloader won't resume download #when connected again #jdownloader --stop-download #sometimes I can not get connected after disconnection when #I click on . I have to disable #and enable Mobile Broadband nmcli -t nm wwan off sleep 1 nmcli -t nm wwan on sleep 1 nmcli -t con up id "Tata Docomo Internet" #wait approximately 15 sec to get connected #if anyone can add better command to check for it just comment it :-p sleep 15 #now connected to internet so start download #jdownloader --start-download fi #it does not worth keep it checking every millisecond. #my connection will be reestablished within 5-15 seconds sleep 2 #if anyone can code it better please feel free to comment #TO-DO:: check for data received. if data < 15 KB after 20 seconds of connection #reconnect mobile broadband connection done
#!/bin/sh echo "Starting Mobile Broadband Connection. Tej" while true; do # testing...to see if gsm is on the list of active devices LC_ALL=C nmcli -t -f TYPE,STATE dev | grep -q "^gsm:disconnected$" if [ $? -eq 0 ]; then break else # not connected, sleeping for a second sleep 1 fi done # now once GSM modem shows up, run these commands while true; do # Enable Mobile Broadband nmcli -t nm wwan on # Connect to network nmcli -t con up id "BSNL/CellOne New GPRS/3G 1" # Check status if connected or not nmcli -f device,state -t dev | grep ttyACM0 | awk -F':' '{print $2}' | { read status; } echo $status; if [$status == "connected"]; then break else # not connected, sleeping for a second nmcli -t nm wwan off sleep 1 fi done