Search notes:

PowerShell cmdLet get-azSubscription

get-azSubscription returns a Microsoft.Azure.Commands.Profile.Models.PSAzureSubscription object: 
PS /home/rene> (get-azSubscription).getType().fullName
Microsoft.Azure.Commands.Profile.Models.PSAzureSubscription

PS /home/rene> Get-AzSubscription | select *
Some (or all?) information that is returned by get-azSubscription is also found in the Azure: drive: 
PS /home/rene> get-azSubscription

Name                      Id                                   TenantId                             State
----                      --                                   --------                             -----
tq84 initial subscription 01234567-89ab-cdef-0123-456789abcdef fedcba98-7654-3210-fedc-ba9876543210 Enabled

PS /home/rene> get-childItem Azure:/

    Directory: Azure:


Mode SubscriptionName          SubscriptionId                       TenantId                             State
---- ----------------          --------------                       --------                             -----
+    tq84 initial subscription 01234567-89ab-cdef-0123-456789abcdef fedcba98-7654-3210-fedc-ba9876543210 Enabled

See also

Subscriptions
Apparently get-AzSubscription is equivalent to the shell/bash command az account list.

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