WriteLn create a 2-byte Empty File

[armsys]

Referring to

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WriteLn>c:\temp\test.txt,result,

why does it always create a 2-byte empty text file?
Is it possible to a zero-byte empty text file by WriteLn?
To bypass the above limitation, I use Run>cmd.exe /C copy NUL "c:\Temp\Temp.docx" instead.

[JRL]

hi Armstrong,

By default WriteLn> adds a carriage return and line feed every time it writes a line. To avoid this you set the system variable WLN_NOCRLF to 1. See help for WriteLn>.

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Let>WLN_NOCRLF=1
WriteLn>c:\temp\test.txt,result,

[armsys]

Hi JRL,
Thanks for your reply.
Before posting my question, I did try out your trick amongst others in vain.
It always creates a 2-byte text file.
And I re-test your script and confirm the file size is still 2 bytes.
Have you tested your script?

[hagchr]

Hi, When I try JRL's code I get 0kb. My understanding is that if the file already exists then it will append to it. Did you try to delete the test file before running the new code?

[Marcus Tettmar]

WriteLn means "Write A Line". A line has a line break. That's what you are seeing.

JRL's method switches off the line break (so it's no longer writing a new line) and so you don't see the line ending chars.

[armsys]

Hi Hagchr & Marcus,
Thanks for your help.
Repeatedly testing out the following script confirms a 2-byte text file as indicated in the Explorer:

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DeleteFile>C:\Temp\Temp.docx
IfNotFileExists>C:\Temp\Temp.docx
  Let>WLN_NOCRCRLF=1
  WriteLn>C:\Temp\Temp.docx,wres,
Endif

[JRL]

That's because your global variable WLN_NOCRCRLF does not exist. Too many CRs in it. Change it to WLN_NOCRLF. the following code will also tell you the size of the file so you won't have to take any extra steps to see how big the file isn't.

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DeleteFile>C:\Temp\Temp.docx
IfNotFileExists>C:\Temp\Temp.docx
  Let>WLN_NOCRLF=1
  WriteLn>C:\Temp\Temp.docx,wres,
Endif

FileSize>C:\Temp\Temp.docx,vBytes

MDL>vBytes

[armsys]

Hi JRL,
You're correct. I made a variable typo of WLN_NOCRLF. Yes, your code produces a text files of zero bytes.
Thank you all.