The code snippet in the linked proposed duplicate reads user input.
ECHO A current build of Test Harness exists.
set /p delBuild=Delete preexisting build [y/n]?:
The user can type as many letters as they want, and it will go into the delBuild variable.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…