[Batch] The Official Batch File Repository - Learn & ask questions about batch files

thanks timesurfer....
Very interesting and helpfull.....

 

hi guys How can hide Command window when batch file runs

this is my xp.bat file thank you

"C:\wxxx\xp.bat"

 

You have to launch cmd.exe from an application that sets the SW_HIDE flag.

For example hstart.

 

NUL is the name of a special "file" that discards all information that is attempted written to it, while reporting "write succeeded" to the caller. It's often referred to as a "Black Hole". Look at it as a bottomless trash can.

In other words, it behaves the same way as a normal file on your hard drive and is often used for disposing of an unwanted data Stream.

The equivalent in Linux operating systems is the /dev/null file.

Consider the following example:

Code:

echo "Good bye cruel world" >> NUL

The text "Good bye cruel world" will be echo'ed into the NUL file and will effectively be gone forever. That could make a nice comic lol, "You want me to write this data? You do? All right, watch me write your data with this LIGHTER"

In this following example, NUL has been substituted with example.txt

Code:

echo "What a wonderful world" >> example.txt

In this scenario, the text will be written to the example.txt file and will be available for reading by other applications later.

 

I am using the Windows Scheduler to run a batch file at a specific time. When it is running, the command prompt will prompt out for about a quarter of a second to show it is running. I want to hide the command prompt window so that it runs without me even knowing it.

I have tried putting @ECHO OFF as the first line in the batch file, but this still opened the command prompt window executing the command.

Is this even possible?

 

Yes, it's possible to hide the command prompt window in a scheduled task. All you need to do is have it run under a different account than you are logged in as — such as the Local System (S-1-5-18), using /RU SYSTEM.

 

How do I create a batch file to delete all *.exe except for 1 exe file ?

presently I am renaming the exe file to something else before deleting the exe files;

eg
ren c:\example\donotdelete.exe donotdelete.zip
del /q c:\example\*.exe
ren c:\example\donotdelete.zip donotdelete.exe

 

@sulasno

This for-loop should do the job

Code:

@echo off

for %%i in (C:\Example\*.exe) do if not "%%i"=="donotdelete.exe" del /q "%%i"

pause

Edit: This example is wrong, check this post (#96 in this thread) for the solution.

 

@Calistoga

this is the actual batch

Code:

@echo off

for %%i in "C:\Documents and Settings\username\APLN\iopus\*.exe" do if not "%%i"=="Downloader.exe" del /q "%%i"

pause

no files are being deleted;

I tried changing %%i to %%x but still no exe files are being deleted

 

Oops sorry there bud, I did a mistake in the code.

Does this work properly?

Code:

@echo off

cd  /d "C:\Documents and Settings\username\APLN\iopus\"

for %%i in (*.exe) do if not "%%i"=="Downloader.exe" del /q "%%i"

pause

 

Thank you very much

 

No solution yet? Here is diamond.bat:

Code:

@echo off
if not "%1"=="5" goto nojoy
if "%1"=="5" goto diamond

:nojoy
echo.
echo No diamond found! Try again...
goto end

:diamond
echo.
echo       0 
echo      0 1 
echo     0 1 2 
echo    0 1 2 3 
echo   0 1 2 3 4 
echo  0 1 2 3 4 5 
echo  0 1 2 3 4 5 
echo   0 1 2 3 4 
echo    0 1 2 3 
echo     0 1 2 
echo      0 1 
echo       0
goto end

:end

Cheers

 

Well, well... The code above is extremely easy and scarcely needs an explanation. "%1" corresponds to the first argument; "%2" would correspond to the second argument and so on. You can use anything as an argument, including "professional-alike" arguments like "/A", "-R" and so on.

Note that using letters instead of numbers will force you to take account of uppercase and lowercase letters. If you don't want the user to be bothered with uppercase/lowercase alternatives, or with minor questions like using "/" or "-" in an argument, you may turn things easier to him this way:

Code:

if "%1"=="/R" goto diamond
if "%1"=="/r" goto diamond
if "%1"=="-R" goto diamond
if "%1"=="-r" goto diamond

Now let's propose a small variation of the challenge above. Rewrote the code of "diamond.bat" in order to obtain this output:

Code:

Here is your diamond:

       0 
      0 1 
     0 1 2 
    0 1 2 3 
   0 1 2 3 4 
  0 1 2 3 4 5 
  0 1 2 3 4 5 
   0 1 2 3 4 
    0 1 2 3 
     0 1 2 
      0 1 
       0

But in such way that it will replace the word "diamond" with any name you may choose to rename the batch file itself.

 

you missed the 'pause' to make a stop and display, and yet it did not work that way....