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Date:	Sat, 2 May 2020 20:09:08 -0400
Message-ID:	<CAAAwJxtZnySvW3mDhcPLgf6BpMS7Ffx=z03EqvJrOuxp3m3x-g@mail.gmail.com>
Subject:	Invalid request code when removing files
To:	cygwin AT cygwin DOT com
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From:	Sean Baker via Cygwin <cygwin AT cygwin DOT com>
Reply-To:	Sean Baker <sbaker48 AT gmail DOT com>
Sender:	"Cygwin" <cygwin-bounces AT cygwin DOT com>

I just installed Cygwin on a new Windows 10 machine. I am getting an error
"Invalid request code" whenever I try to remove a file. Every other file
operation that I have tested so far seems to work fine.

Using a Windows CMD prompt, I can remove the file with the normal windows
DEL command. However, if I try to execute C:\cygwin64\bin\rm.exe it still
fails with "Invalid request code".

This problem does not just occur with the 'rm' command. For example. 'vi'
and 'git' cannot remove the lock files that they create. Also custom
programs that I write myself and compile under Cygwin fail with the same
error code when trying to remove files, even when executed from a Windows
CMD prompt or clicked on in Windows explorer. The location of the file does
not matter either, since I have tried files in the Cygwin home dir, my
Users directory, My Documents, etc with the same result.

However I have also installed MinGW, and in both the Cygwin terminal and
Windows CMD prompt I can remove files successfully by calling the rm.exe
installed there (see examples).

Example under Cygwin:

sbaker AT FWA002495 ~ >$ echo test > foo
sbaker AT FWA002495 ~ >$ ls -l foo
-rw-r--r-- 1 sbaker Domain Users 5 May  2 19:47 foo
sbaker AT FWA002495 ~ >$ cat foo
test
sbaker AT FWA002495 ~ >$ rm foo
rm: remove regular file 'foo'? y
rm: cannot remove 'foo': Invalid request code
sbaker AT FWA002495 ~ >$ /cygdrive/c/MinGW/msys/1.0/bin/rm.exe -v foo
removed `foo'

Example under Windows CMD:

C:\Users\sbaker>echo test > foo
C:\Users\sbaker>c:\cygwin64\bin\rm.exe -v foo
/usr/bin/rm: cannot remove 'foo': Invalid request code
C:\Users\sbaker>c:\MinGW\msys\1.0\bin\rm.exe -v foo
removed `foo'
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