nmcli NMCLI

• NMcli command 範例
• Gnome nmcli-examples ( with dispatcher )
• Gnome nmcli
• Linux – NetworkManager 設定檔
• Setting up a WIFI connection via command line on Debian/Ubuntu (Network Manager)

Ethernet:

• sudo nmcli  c add autoconnect yes save yes type ethernet ifname eth0 con-name jeth ip4 192.168.2.210/24 gw4 192.168.2.1 
• sudo nmcli c mod jeth ipv4.addresses "192.168.2.210/24"
• sudo nmcli c mod jeth ipv4.gateway 192.168.2.1
• sudo nmcli c mod jeth ipv4.dns 168.95.1.1 
• sudo nmcli c mod jeth ipv4.method manual
• sudo nmcli con up jeth
• nmcli connection show
• modify
• sudo nmcli con modify jeth ipv4.address "192.168.1.198/24"
• sudo nmcli con mod jeth ipv4.gateway 192.168.1.201
• sudo nmcli con up jeth

Wifi:

• sudo nmcli con add autoconnect yes save yes con-name jwifi ifname wlan0 type wifi ssid iSSA_ASUS_50_2.4G
• sudo nmcli con mod jwifi wifi-sec.key-mgmt wpa-psk
• sudo nmcli con mod jwifi wifi-sec.psk 54098542   
• sudo nmcli con up jwifi  (很多秒)
• nmcli connection show
• Modify
• sudo nmcli con mod jwifi wifi.ssid iSSA_ASUS_50_2.4G
• sudo nmcli con mod jwifi wifi-sec.psk 54098542 

Extend:

• sudo nmcli c reload jack
• nmcli -p con show my-con-em1
• Example 1. Listing available Wi-Fi APs
• nmcli device wifi list  ( Signal Bar)
• nmcli -f all dev wifi list ( All Signal Bar)
• Example 2. Showing general information and properties for a Wi-Fi interface
• nmcli -p -f general,wifi-properties device show wlan0

Renew eth0 connection status, if incorrect:

• nmcli dev | grep "ethernet"

Dispatcher: put in /etc/NetworkManager/dispatcher.d/70-wifi-wired-exclusive.sh 

#!/bin/bash
export LC_ALL=C

enable_disable_wifi ()
{
    result=$(nmcli dev | grep "ethernet" | grep -w "connected")
    if [ -n "$result" ]; then
        nmcli radio wifi off
    else
        nmcli radio wifi on
    fi
}

if [ "$2" = "up" ]; then
    enable_disable_wifi
fi

if [ "$2" = "down" ]; then
    enable_disable_wifi
fi
      

nmcli dev show eth0|grep CARRIER|tr -s ' '|cut -d ' ' -f2