Network Manager Command Line Interface is a command line utility for controlling NetworkManager and reporting network status.
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| nmcli [OPTIONS] OBJECT { COMMAND | help }
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| butcher@butcher:~$ nmcli help
Usage: nmcli [OPTIONS] OBJECT { COMMAND | help }
OPTIONS
-a, --ask ask for missing parameters
-c, --colors auto|yes|no whether to use colours in output
-e, --escape yes|no escape columns separators in values
-f, --fields <field,...>|all|common specify fields to output
-g, --get-values <field,...>|all|common shortcut for -m tabular -t -f
-h, --help print this help
-m, --mode tabular|multiline output mode
-o, --overview overview mode
-p, --pretty pretty output
-s, --show-secrets allow displaying passwords
-t, --terse terse output
-v, --version show program version
-w, --wait <seconds> set timeout waiting for finishing operations
OBJECT
g[eneral] NetworkManager's general status and operations
n[etworking] overall networking control
r[adio] NetworkManager radio switches
c[onnection] NetworkManager's connections
d[evice] devices managed by NetworkManager
a[gent] NetworkManager secret agent or polkit agent
m[onitor] monitor NetworkManager changes
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| command | function |
|---|
| nmcli -p device | -p pretty view of device status |
| nmcli device status | All devices and their status |
| nmcli connection show | List all configured connections |
| nmcli connection show –active | Active connections only |
| nmcli device wifi show-password | displays SSID, security type and password with QR code |
| nmcli general status | Network Manager Status |
nmcli -p device
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| butcher@butcher:~$ nmcli -p device
=====================
Status of devices
=====================
DEVICE TYPE STATE CONNECTION
------------------------------------------------------------------------------------
wlx1cbfce718a5d wifi connected MacSheen
lo loopback connected (externally) lo
eno1 ethernet unavailable --
enp2s0f0 ethernet unavailable --
enp2s0f1 ethernet unavailable --
butcher@butcher:~$
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nmcli connection show
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| butcher@butcher:~$ nmcli connection show
NAME UUID TYPE DEVICE >
MacSheen 01d7db20-0b63-41ab-b929-eb9b0c70f2cf wifi wlx1cbfce71>
lo a3b523b8-9d75-4b39-bf19-463281474490 loopback lo >
Hifi 78307044-52f3-46fc-918f-47bb1cfeff97 wifi -- >
MacSheen 1 d6a02df1-3668-48e1-b0d4-3834f0c3946e wifi -- >
shanker 22d1027a-c380-4a79-bbc2-f4fd849a424d wifi -- >
Wired connection 1 27e5b3d3-6899-3ccb-93dd-e611ed2d3ee7 ethernet -- >
Wired connection 2 9c27ebb5-05c3-32b7-82a6-9f468b4f3157 ethernet -- >
Wired connection 3 0d70d260-d400-3dca-985f-224ad2f7942c ethernet -- >
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nmcli connection show --active
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| butcher@butcher:~$ nmcli connection show --active
NAME UUID TYPE DEVICE
MacSheen 01d7db20-0b63-41ab-b929-eb9b0c70f2cf wifi wlx1cbfce718a5d
lo a3b523b8-9d75-4b39-bf19-463281474490 loopback lo
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nmcli device wifi show-password
This one is my favorite
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| butcher@butcher:~$ nmcli device wifi show-password
SSID: MacSheen
Security: **********
Password: **********
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butcher@butcher:~$
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nmcli general status
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| butcher@butcher:~$ nmcli general status
STATE CONNECTIVITY WIFI-HW WIFI WWAN-HW WWAN
connected full enabled enabled missing enabled
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Reference
https://networkmanager.dev/docs/api/latest/nmcli.html
https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/networking_guide/sec-configuring_ip_networking_with_nmcli
