如何使用Windows批处理命令删除“没有扩展名的文件”的所有内容

Question

I want to delete the contents of a file which has "FIlE" as extension ie with no extension. I know how to delete the contents of a Text file, but not about the file which has "File" as extension.

I would appreciate your efforts. Thanks in advance.

Answer 1

Use Del *. in batch file to remove files with no extension.

use Dir /AD *. to list down all files with no extension.

Use following command to clear the contents of a file

findstr "Any data that is not available in origfilename" origfilename > origfilename

Answer 2

Try this:

echo. 2>file.

It will basically overwrite the file with nothing, achieving the same goal as removing all the contents. Just replace file. with your file. To specify no extension just don't put anything after the .

Hope this helps.

Answer 3

copy nul YourFIlE
copy /y nul YourFIlE

In case you wonder, NUL is a special name (like /dev/null on UNIX), just as CON (which is the console). I think this is the best way to clear the contents. The file will then have 0 bytes in it. An echo plus output redirection will write one line to the file, so it does not completely clear the contents.

Answer 4

How about

del /s "*."

Worked well on the tests I did on windows 10. Test it of course in a safe directory. You can of course put this into a batch. I do one for cleaning out annoying left overs like .txt with something like:

echo off

del /s D:\FILES\completed\*.nfo

del /s D:\FILES\completed\*.wflow

del /s D:\FILES\completed\*.workflow

del /s "D:\FILES\completed\*."

echo complete

echo on

Will delete all files in the main directory and all sub directories.
Quotes were required as it would not work without them. Did not try it with 3 deep extenstions.