Undesirable nul file with tlmgr.bat under Windows

[Torsten Schütze]

> Am 11.07.2019 um 20:31 schrieb Reinhard Kotucha <reinhard.kotucha at web.de>:
> 
> I suppose that you have to install the Cygwin binaries as well:
> 
>   tlmgr platform add cygwin
> 
> You have to do this under Windows.  

You mean with the current TeXLive Installation under C:\TeX? Not with the cygwin packet manager setup-x86_64.exe?
> I don't think that what you do ATM can work reliably.  

It worked for several years. What I changed recently is that I now use the command line tlmgr.bat update —all while I used the gui before. But with the recent changes. TclTk -> tcshell I prefer now the faster cmd line. 

The reason why I call tlmgr.bat under Cygwin and not under Windows cmd is that at work I am behind a Proxy. And adding export_httpproxy=... in .bashrc is  fairly easy.

I didn‘t know that I am running an unsupported configuration (I am not quite convinced.) And except from this small nul annoyance everything is fine. 
Are the cygwin and win32 binary versions always the same?

I will see if I can try your tip tomorrow 

Thanks
Torsten