In my DOS batch file the "copy" command is used to copy the contents of one folder to another folder. I have @echo off
set at the beginning of the file, but when
the files are copied, the results are displayed on the screen. How can I NOT display on screen all the files that are being copied?

> nul
on the end of the copy command line will do what you want.

i.e.
copy autoexec.bat a:\ > nul

"echo off" tells DOS not to show on screen each of the commands executed in your batch file, which is different. It is used to replace, all in one command, the "@" in front of each command, which does the same. One "@echo off" (with the @ to hide even that line) hides all commands. What you can do to make programs not to show anything on screen is to redirect them to the null device, that's what the other fellow said.
Also, if it doesn't work, you can try running CTTY NUL, then the command, then CTTY CON.

Andrés

In addition to what was said in previous answers:

The method with CTTY also supress error messages, like "file not found". The method presented by "the computer expert" does NOT supress error messages.

copy file1.dat file2.dat > nul

If, for instance, doesn't exist, an error message WILL be displayed. But:

CTTY NUL
copy file1.dat file2.dat
CTTY CON

That will supress any error messages.

DO NOT FORGET TO GIVE "CTTY CON"!!! If you end the batch file without passing that command, user won't be able to gain control of the computer.

PS: What sort of nickname is "the comptuter expert"? Wow, he must be really "VERY" expert...........

-- Secret_Doom - Leonardo Pignataro --

secret_doom@hotmail.com
www.batch.hpg.com.br

You guys Rock !!
Thank you, thank you, thank you.

Thanks, Leonardo, Andres and Compter Expert

I learned something from each of you.

I had given up on this problem, but I took your advice and it worked great.

ps. Nice website at www.batch.hpg.com.br
I will tell others about it. I know it will be very helpful.

Sincerely, RC