how to userinput without typing to a batch file

Question

I am trying to run a batch file which requires user input \"y/n\" to do further action. I want to call this batch file for automation, as during automation argument yes or n

Answer 1

Use below command line to automate "yes" answer by simulating y key press (will include the ENTER key).

cmd /c echo y^> "%temp%\answer.tmp" ^& (setup.bat ^< "%temp%\answer.tmp") ^& del "%temp%\answer.tmp"

To automate "no" answer by simulating n key then ENTER` key.

cmd /c echo n^> "%temp%\answer.tmp" ^& (setup.bat ^< "%temp%\answer.tmp") ^& del "%temp%\answer.tmp"

To automate "yes" answer by simulating "yes" key presses then ENTER key:

cmd /c echo yes^> "%temp%\answer.tmp" ^& (setup.bat ^< "%temp%\answer.tmp") ^& del "%temp%\answer.tmp"

To automate "no" answer by simulating "no" key presses then ENTER key:

cmd /c echo no^> "%temp%\answer.tmp" ^& (setup.bat ^< "%temp%\answer.tmp") ^& del "%temp%\answer.tmp"