Send to file not working

[#1]

using the cmd ....Dir c:\ /s /b |sort /+256 /r >longname.txt

to list all filepath names > 256 characters doesn't seem to work.

the offending names are listed on the screen and not piped to longname.txt

can anyone see or correct the error?

[#2]

Do you have write permissions for the directory you are running the command from?

[#3]

@Browni yes it is in my docs on C:\users

The file name longname.txt is created in the directory and has 0 length

each entry on the screen is listed as The Directory Name ...directory and file name......  is to long

[#4 · Accepted solution]

I'm stumped then as I copied & pasted the command into cmd (not powershell) in Windows 10 and it worked.

[#5]

Thanks @Browni  thank you for looking at it. think I've found the issue, the directory I was running the command against was created using a "Windows copy command" 

Any filepath+filename that was beyond the 256 character in the string seems to have been truncated at the 256 character mark and basically ignored in the copy.

[#6]

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@Browni wrote:
Do you have write permissions for the directory you are running the command from?

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And on that note, i just thought i'd remind you that there is cmd and command - both look the same but both act differently with long file names.

[#7]

Long file names didn't exist when I started using DOS