Executable bit check

Larry Hall (Cygwin) reply-to-list-only-lh@cygwin.com
Fri Nov 5 01:21:00 GMT 2010


On 11/4/2010 8:36 PM, Illia Bobyr wrote:
> Hi,
>
> It seems that Cygwin does not check for executable bit before it allows
> a script to run, does it?
>
> $ rm abc
>
> $ cat<<EOF>abc
>    >  #!/bin/sh
>    >  echo Hm...
>    >  EOF
>
> $ ll abc
> -rw-r--r--+ 1 ibobyr Domain Users Nov 21  4 16:44 abc
>
> $ test -x abc&&  echo Executable
> Executable

<snip>

>>> What does 'getfacl abc' say?
>   >
>> $ getfacl abc
>> # file: abc
>> # owner: ibobyr
>> # group: Domain Users
>> user::rw-
>> group::r--
>> group:SYSTEM:rwx
>> group:Administrators:rwx
>> group:Users:r-x
>> mask:rwx
>> other:r--

<snip>

>>> There's more to permissions than just the 9 unix mode bits.  You really
>>> CAN execute the file if test -x says you can; the question should rather
>>> be why 'chmod -x' didn't remove all execute permissions, and that
>>> usually boils down to ACL settings.

So, are you part of the 'Users' or 'Administrators' group?  If so, you
have executable permission from the ACL.  Try removing those.

-- 
Larry Hall                              http://www.rfk.com
RFK Partners, Inc.                      (508) 893-9779 - RFK Office
216 Dalton Rd.                          (508) 893-9889 - FAX
Holliston, MA 01746

_____________________________________________________________________

A: Yes.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting annoying in email?

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