How to use script in Putty to send command line by line?

Hi In order to send a batch of commands correctly to router, we could use script to send command line by line in Putty. Anyone can give some suggestions how to do that? The below is link for CRT. Do you think Putty has similar way to do that? Thank you
https://www.vandyke.com/support/tips/echoflowctrl.html