Get-AzureADApplication.ps1

### Authenticate to AAD
Login-AzureRmAccount

### There are two commands for this, from two sources
Get-Command Get-AzureADApplication   #module: AzureAD 1.1.23.0
Get-Command Get-AzureRmADApplication #module: AzureRM.Resources 1.0.3

Get-AzureRmADApplication -DisplayNameStartWith fooApp

<#
DisplayName             : fooApp
Type                    : Application
ApplicationId           : aaaaaaaa-2424-2424-2424-aaaaaaaaaaaa
ApplicationObjectId     : bbbbbbbb-2626-2626-2626-bbbbbbbbbbbb
AvailableToOtherTenants : False
AppPermissions          : {{
                            "claimValue": "user_impersonation",
                            "description": "Allow the application to access fooApp on behalf of the signed-in user.",
                            "directAccessGrantTypes": [],
                            "displayName": "Access fooApp",
                            "impersonationAccessGrantTypes": [
                              {
                                "impersonated": "User",
                                "impersonator": "Application"
                              }
                            ],
                            "isDisabled": false,
                            "origin": "Application",
                            "permissionId": "cccccccc-2626-2626-2626-cccccccccccc",
                            "resourceScopeType": "Personal",
                            "userConsentDescription": "Allow the application to access fooApp on your behalf.",
                            "userConsentDisplayName": "Access fooApp",
                            "lang": null
                          }}
IdentifierUris          : {http://fooApp}
ReplyUrls               : {}
#>