To Connect/disconnect existing-connected wifi:
nmcli con up "wifi name";
nmcli con down "wifi name";
To Connect/disconnect new wifi:
nmcli device wifi connect "wifi_name" password "password";
nmcli device down "con-name" or nmcli device disconnect "interface_name";
To Create PC hotspot(Lin):
Note:Interface i.e. wifi device not required here since wifi-interface is only used for hotspot also ,con-name must be for future
use same hotspot
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nmcli device wifi hotspot ifname "interface_name" ssid "hotspot_display_name" con-name "any name to use for network" password "your_password"
nmcli device down "con-name" or nmcli device disconnect "interface_name";
to re-activate/deactivate existing hotspot use con-name
nmcli device up "con-name"
nmcli device down "con-name"