China DOS Union

How to add a statement in a batch file that can automatically input "y" and perform the enter function under DOS?
I want to add in the batch file the function of automatically inputting "y" and performing the enter under DOS. What statement should be written? Please guide by the moderator and experts, thank you!

如：echo y | del *.*

The example: echo y | del *.*

Floor 2, I tried it and it didn't work! Also, your del *.* completely wiped out everything on my floppy disk!!! My problem is like this: I boot with a DOS disk and it shows a program's LOGO image and gives "yes" or "no" options. I want to add in a batch file to automatically input "y" and press Enter, so that it can automatically continue to start DOS for the next program. Is there any other good method?

The choice command: choice or choice /c:yn or you can also write such a command by yourself in C language. It should also be possible with assembly, I haven't tried it. There is a special function in C language that supports this practice for DOS/WINDOWS.

I also thought of the method upstairs, but choice only gives a yes/no choice, and I still have to manually enter y, which doesn't achieve my goal of "automatically entering y under DOS and pressing Enter". Moreover, I tried it, and when the program reaches the line where it asks "y" or "no" for selection, it stops and no longer executes the choice command.

Haha~Funny~The LZ is so cute

Hehe, that's the case. Automatically input y and press enter to execute, so there's no need for judgment at all, just execute directly. echo ?Ycommand^_^

Or as the second floor said, echo y | choice

Dear fellow experts, let's still take a look at the conclusion of the站长 of DOS Home:
It cannot be achieved unless TSR is pre-loaded. Because during the execution of each program, an external intervention is necessary to interrupt. There are two types of interruptions: one is through input and output devices such as the keyboard, and the other is that the monitor program (resident program, English TSR) triggers under certain conditions.
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Ge Mingyang,站长 of DOS Home
http://doshome.com
I've given up, and I won't work on batch processing anymore, but I still want to thank all the experts for their enthusiastic guidance!
By the way, the method mentioned by the person upstairs, the command simply doesn't execute, because the program stops when the LOGO appears and "y" or "n" is displayed, waiting for you to manually input "y", and won't execute your command.

The following is the statement from hxj on 2005-4-13 22:03:58:

On the 2nd floor, I tried and it didn't work! Also, your del *.* completely erased all the things on my floppy disk!!!
My problem is like this: After I boot with a DOS disk, a program's LOGO image is displayed and it gives "yes" or "no" options. I want to add in the batch file to automatically input "y" and press enter, so that it can automatically continue to start DOS for the following program. I wonder if there are any other good methods?

Hehe, since you didn't make the problem clear in advance, I just used del as an example to demonstrate, and didn't ask you to copy the whole sentence exactly.
The conclusion of DOS webmaster Ge Yangming is reasonable, but it's not necessary to use TSR. The Kpush small program on the MSDOS 7.1 boot disk is a very good thing that can set the keyboard buffer. Making good use of it can achieve the purpose of the original poster. For example: Before executing the statement of selecting Y or N in the batch processing, run kpush y first.

You can use input redirection. First, edit a text file with the content: Yenter. Then add "< text file name" after running your batch file. For example: format a: < zzz.txt

The following is the speech of hxj on April 14, 2005, 20:23:44:

Dear experts, let's still take a look at the conclusion of the webmaster of DOS Home:
Unless TSR is loaded in advance, it cannot be achieved. Because during the execution of each program, there must be external intervention to interrupt. There are two types of interrupts. One is using input and output devices such as the keyboard. The other is that the monitoring program (resident program, English TSR) triggers under certain conditions.
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Ge Mingyang, Webmaster of DOS Home
http://doshome.com
I'm disheartened and won't work on batch processing anymore. But I still want to thank all the enthusiastic guides of you!
By the way, the method of the above-mentioned building, the command does not execute at all. Because the program stops and waits for you to manually input "y" when it appears LOGO and "y" or "n". No longer execute your command.

I don't know if the author of the quoted post has tested it on his own machine. If not, don't talk casually!