possible problem with "find . -name blah -o -name blah2"

possible problem with "find . -name blah -o -name blah2"

[mlist]

using CYGWIN_NT-6.1, bash 4.1.11(2) and find 4.5.12, the following returns
immediately

   find . -name \*.cs -o -name \*.h -o -name \*.cpp -exec ls {} \;

pick your favorite for 'ls'

this works as expected

   find . -name \*.cs -o -name \*.h -o -name \*.cpp

it's probably not a horrible problem but i thought i'd report it.

   bo

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Re: possible problem with "find . -name blah -o -name blah2"

[Georg Nikodym]

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On Aug 20, 2014, at 16:58 , mlist@bogusville.us wrote:

> using CYGWIN_NT-6.1, bash 4.1.11(2) and find 4.5.12, the following returns
> immediately
> 
>   find . -name \*.cs -o -name \*.h -o -name \*.cpp -exec ls {} \;

Not a Cygwin problem.  Try:

	find . \( -name \*.cs -o -name \*.h -o -name \*.cpp \) -exec ls {} \;

-g


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Re: possible problem with "find . -name blah -o -name blah2"

[Andrey Repin]

Greetings, mlist@bogusville.us!

> using CYGWIN_NT-6.1, bash 4.1.11(2) and find 4.5.12, the following returns
> immediately

>    find . -name \*.cs -o -name \*.h -o -name \*.cpp -exec ls {} \;

> pick your favorite for 'ls'

$ uname -a
CYGWIN_NT-5.1 daemon2 1.7.32s(0.274/5/3) 20140807 16:26:58 i686 Cygwin

$ find . -name \*.cs -o -name \*.h -o -name \*.cpp -exec ls {} \;
./farmanager-read-only/enc/enc_rus/meta/articles/panel/panelplugin.1/desktop.cpp
./farmanager-read-only/enc/enc_rus/meta/articles/panel/panelplugin.1/main.cpp
./farmanager-read-only/enc/enc_rus/meta/articles/panel/panelplugin.1/mix.cpp
./farmanager-read-only/misc/fexcept/execdump/ExcDump.cpp
./farmanager-read-only/misc/fexcept/execdump/test/test.cpp
./farmanager-read-only/misc/fexcept/execdump/xxlib/Std/2asm.cpp

> this works as expected

>    find . -name \*.cs -o -name \*.h -o -name \*.cpp

> it's probably not a horrible problem but i thought i'd report it.

Can't seems to replicate it on my setup. Do you use 64-bit Cygwin?

Discussion aside, please use -execdir rather than -exec to avoid race
conditions in a time gap between find's decision to run something and
actually running that something.


--
WBR,
Andrey Repin (anrdaemon@yandex.ru) 21.08.2014, <02:39>

Sorry for my terrible english...


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Re: possible problem with "find . -name blah -o -name blah2"

[Eric Blake]

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On 08/20/2014 02:58 PM, mlist@bogusville.us wrote:
> using CYGWIN_NT-6.1, bash 4.1.11(2) and find 4.5.12, the following returns
> immediately
> 
>    find . -name \*.cs -o -name \*.h -o -name \*.cpp -exec ls {} \;

This parses as:
find . -name \*.cs -o -name \*.h -o \( -name \*.cpp -exec ls {} \; \)

> 
> pick your favorite for 'ls'
> 
> this works as expected
> 
>    find . -name \*.cs -o -name \*.h -o -name \*.cpp

This parses as:
find . \( -name \*.cs -o -name \*.h -o -name \*.cpp \) -print

> 
> it's probably not a horrible problem but i thought i'd report it.

Not a bug.  Same POSIX-mandated behavior on all platforms.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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