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Subject: Re: How to run xinit without first entering a cygwin terminal
To: cygwin AT cygwin DOT com
References: <CAJACTudb8DzgcpxEF-G730eBptRV8ELc-+x6s9CMhcgwi1Vfxg AT mail DOT gmail DOT com> <56321DC3 DOT 2030704 AT dronecode DOT org DOT uk> <CAJACTuf2pmPoRiw8BoNc0PhtVReuRmeYfCqdX3LQyLrpdoDM3Q AT mail DOT gmail DOT com>
From: Jon Turney <jon DOT turney AT dronecode DOT org DOT uk>
Cc: Xuehan Xu <xxhdx1985126 AT gmail DOT com>
Reply-To: cygwin AT cygwin DOT com
Message-ID: <5634A9D3.1010808@dronecode.org.uk>
Date: Sat, 31 Oct 2015 11:45:23 +0000
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On 30/10/2015 00:40, Xuehan Xu wrote:
> Thanks for your reply:-)
>
> I followed your advice, now it seems that rdesktop is running, but the
> window that xinit showed was just plain black. rdesktop is supposed to
> be a remote desktop client that runs on linux and connect to a windows
> remote desktop. When I use the command "/usr/bin/xinit.exe
> ./rdesktop/rdesktop.exe -f 192.168.1.79" in a cygwin terminal, it can
> show the desktop of 192.168.1.79.
>
> Could this be due to the same reason  that startx can't show the
> cygwin desktop? What should I do? Thanks;-)

Hmm... so when I try this, it seems it only works when I arrange for 
rdesktop's stderr to go somewhere, e.g.

C:\cygwin64\bin\run.exe -quote /usr/bin/bash.exe -l -c "/usr/bin/xinit 
/usr/bin/rdesktop -f byron >/var/log/xwin/rdesktop_session.log 2>&1"

If that's really necessary, perhaps that's a bug in run.

(You do know that you could achieve a similar effect with 'mstsc /f 
/v:byron' ?)

> On 29 October 2015 at 21:23, Jon Turney wrote:
>> On 29/10/2015 06:25, Xuehan Xu wrote:
>>>
>>> Hi, everyone
>>>
>>> I'm trying to run xinit.exe to start a GUI program in a windows cmd
>>> prompt. The command I run:
>>>
>>> "c:\cygwin\bin\run.exe /usr/bin/bash.exe -l -c /usr/bin/xinit.exe
>>> /home/Administrator/rdesktop.exe -f 192.168.1.79
>>>
>>> But, it seems that rdesktop.exe isn't running, the window was just
>>> showing a terminal prompt.
>>
>>
>> Using the command lines from the start menu items created for the xinit
>> package as a template (see [1]), I think you need something like:
>>
>> c:\cygwin\bin\run.exe -quote /usr/bin/bash.exe -l -c "/usr/bin/xinit.exe
>> /home/Administrator/rdesktop.exe -f 192.168.1.79"
>>
>> The command string being given to bash -c needs quoting, otherwise
>> subsequent words are assumed to be parameters to that command.

This reason is wrong.  I should have said something like "needs quoting 
to get correctly passed to bash" since I think the issue is not in bash, 
but in run.

>> run needs to be given the -quote option to protect those quotes.
>>
>> [1] http://x.cygwin.com/docs/faq/cygwin-x-faq.html#q-command-line-args

-- 
Jon TURNEY
Volunteer Cygwin/X X Server maintainer

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