batch file username and password

[sirron]

I have a batch file that runs a batch file

But this batch file has a custom cmd prompt.

When I run it it asks for a username and password.
I have the username and password.

How can I run it automaticly input the username password
username: admin
password changeme

example:

C:\bat>rem @echo off

C:\bat>C:

C:\bat>cd\CNR\NetworkRegistrar\bin

C:\CNR\NetworkRegistrar\bin>nrcmd.bat
username:

and this is the code

rem @echo off
C:
cd\CNR\NetworkRegistrar\bin
nrcmd.bat