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Message-ID: <3E6F8112.7060301@ntlworld.com>
Date: Wed, 12 Mar 2003 18:48:50 +0000
From: Mark Ovens <parish AT ntlworld DOT com>
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CC: cygwin AT cygwin DOT com
Subject: Re: SOLVED: Re: SHELL on W2K (gmake 3.79.1) is cmd.exe not /bin/sh
References: <1CA079E0A10FD7119DC20002A544C5BE553BDC AT eesusciexs3 DOT eesus DOT jnj DOT com> <3E6F64BB DOT 2060605 AT ntlworld DOT com> <015201c2e8ba$8c21c660$78d96f83 AT pomello> <3E6F7E38 DOT 8030409 AT ntlworld DOT com> <02e701c2e8c7$065f4cc0$78d96f83 AT pomello>
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Max Bowsher wrote:
> Mark Ovens wrote:
>> Max Bowsher wrote:
>>> Get him to run "ls -l /bin/sh" and also "id" and send the output
>>> here.
>>>
>>
>> /bin/sh.exe had no perms set (and neither did anything else in /bin)
>>
>> I did a ''chmod 000 /bin/sh.exe'' on my system and got the same
>> problem.
>>
>> I had checked with him early on that sh was executable, but by running
>> it from the command line, and it worked. Just to test this I tried
>> myself:
>>
>> marder-1:~{32}$ ls -l /bin/sh.exe
>> -rwx------+   1 marko    None        69632 Jul 31  2002 /bin/sh.exe
>> marder-1:~{33}$ chmod 000 /bin/sh.exe
>> marder-1:~{34}$ ls -l /bin/sh.exe
>> ----------+   1 marko    None        69632 Jul 31  2002 /bin/sh.exe
>> marder-1:~{35}$ /bin/sh
>> \h:\w{\#}$ exit
>> marder-1:~{36}$
>>
>> That shouldn't work, surely? Without the execute bit set it should
>> throw a "Command not found" or similar.
> 
> This weirdness arises due to the difficulties in mapping ACLs to Unix
> permission bits. (Actually, the very latest, just released, not yet on all
> the mirrors, version 1.3.21 of cygwin has an improvement relating to this.)
> 

Thanks for the explanation, that's useful to know. In future I'll check 
the perms rather than just try running from the command line when 
testing for executableness.

Regards,

Parish

> 
> Max.
> 
> 




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