andrew@mac:~$ brew search azure

==> azure-cli
Bash completion has been installed to:
  /usr/local/etc/bash_completion.d
andrew@mac:~$ 

Two ways, either from script:-

$ curl -sL https://aka.ms/InstallAzureCLIDeb | sudo bash

Or by installing the Azure CLI software repository, see [https://docs.microsoft.com/en-us/cli/azure/install-azure-cli-apt?view=azure-cli-latest]

andrew@mac:~$ az login
Note, we have launched a browser for you to login. For old experience with device code, use "az login --use-device-code"
You have logged in. Now let us find all the subscriptions to which you have access...
[
  {
... lots of json showing available subscriptions...
  }
]
andrew@mac:~$

Note $ az account list shows the above info, $ az account show shows the current subscription.

andrew@mac:~$ az account list -o table
Name                                                 CloudName    SubscriptionId    State    IsDefault
---------------------------------------------------  -----------  ----------------  -------  -----------
DEV_Customer_account                                 AzureCloud   edited-9-ad48-4d  Enabled  True
DEV_Retail_account                                   AzureCloud   edited-8-cbd9-47  Enabled  False

$ az account set -s edited-abc-1234-66bbc83f4219
$ az account show
{
  "environmentName": "AzureCloud",
  "id": "edited-abc-1234-66bbc83f4219",
  "isDefault": true,
  "name": "Playpen",
  "state": "Enabled",
  "tenantId": "edited-1234-abcd-8b8c-908e466eefg",
  "user": {
    "name": "me@example.co.uk",
    "type": "user"
  }
}

Show ALL resources allowed (probably ALL in subscription), this is probably more than you need to see.

$ az resource list
[
 {
...edited..
 }
]

Show resources, in specific RG:-

$ az resource list --resource-group A-testRG1
[
 {
...edited..
 }
]

$ az resource show --ids /subscriptions/<subscriptionID>/resourceGroups/A-testRG1/providers/Microsoft.Compute/virtualMachines/A-ubuntu18.04-01
{
...edited...
ALL subordiname resources, eg. showing VM also shows disks, networks etc. 
Doing a show on a subordinate object just shows that.
}

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