nmcli

"nmcli - command-line tool for controlling NetworkManager" - man nmcli

Examples

Set up a local DHCP server and WiFi access point

#!/usr/bin/env bash
set -x

SSID="some-ssid"
NETWORK_NAME="test_net"

nmcli con delete "${NETWORK_NAME}"
nmcli con add type wifi ifname wlan0 mode ap con-name "${NETWORK_NAME}" ssid "${SSID}" autoconnect false
nmcli con modify "${NETWORK_NAME}" wifi.band bg
nmcli con modify "${NETWORK_NAME}" wifi.channel 3
nmcli con modify "${NETWORK_NAME}" wifi.cloned-mac-address 00:12:34:56:78:9a
nmcli con modify "${NETWORK_NAME}" wifi-sec.key-mgmt wpa-psk
nmcli con modify "${NETWORK_NAME}" wifi-sec.proto rsn
nmcli con modify "${NETWORK_NAME}" wifi-sec.group ccmp
nmcli con modify "${NETWORK_NAME}" wifi-sec.pairwise ccmp
nmcli con modify "${NETWORK_NAME}" wifi-sec.psk "minecraft"

nmcli con modify "${NETWORK_NAME}" ipv4.addresses 192.168.4.1/24
nmcli con modify "${NETWORK_NAME}" ipv4.gateway 192.168.4.1
nmcli con modify "${NETWORK_NAME}" ipv4.dns 192.168.4.1
nmcli con modify "${NETWORK_NAME}" ipv4.method manual
nmcli con modify "${NETWORK_NAME}" ipv6.method ignore