Merge pull request #105255 from aaronpowell/patch-3

Multi-OS example of environment variable setting

Author: PRMerger6

articles/key-vault/quick-create-net-v3.md

@@ -149,13 +149,26 @@ This .NET quickstart relies on environment variables to store credentials that s
 
 Before you build and run your app, use the `setx` command to set the `akvClientId`, `akvClientSecret`, `akvTenantId`, and `akvSubscriptionId` environment variables to the values you noted above.
 
+**Windows**
+
 ```console
-setx akvClientId <your-clientID>
+setx akvClientId "<your-clientID>"
+setx akvClientSecret "<your-clientSecret>"
+```
+
+**Linux**
 
-setx akvClientSecret <your-clientSecret>
-````
+```bash
+export akvClientId = "<your-clientID>"
+export akvClientSecret = "<your-clientSecret>"
+```
+
+**MacOS**
 
-Each time you call `setx`, you should get a response of "SUCCESS: Specified value was saved."
+```bash
+export akvClientId = "<your-clientID>"
+export akvClientSecret = "<your-clientSecret>"
+```
 
 Assign these environment variables to strings in your code, and then authenticate your application by passing them to the [KeyVaultClient class](/dotnet/api/microsoft.azure.keyvault.keyvaultclient):