Update operation.md

docs/operation.md

@@ -15,3 +15,14 @@ imported from existing KVM domains. Once the domain is created :
     sudo ./bin/rvd_back.pl --import-domain=a
 
 It will ask the name of the user the domain will be owned by.
+
+
+# View all rvd_back options
+
+In order to manage your backend easily, rvd_back has a few flags that
+lets you made different things (like changing the password for an user).
+
+If you want to view the full list, execute:
+
+    sudo rvd_back --help
+