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Re: keep find from trying to spider directories where it has no permissi
From: |
jidanni |
Subject: |
Re: keep find from trying to spider directories where it has no permission |
Date: |
Mon, 16 Nov 2009 07:29:37 +0800 |
>>>>> "JM" == Jim Meyering <address@hidden> writes:
JM> James Youngman wrote:
>> On Sat, Sep 19, 2009 at 4:41 PM, <address@hidden> wrote:
EB> Untested, but:
EB> -type d \! -readable -prune
EB> seems like it should do the trick of telling find to not descend into
EB> unreadable directories.
>>>
>>> Well, I hope there can be an example added to the find man page.
>>>
>>> Anyway, in the general case ... there needs to be a way...
>>>
>>> $ chmod 0 jidanni.org/geo/islands
>>> $ find jidanni.org -type f|wc
>>> find: `jidanni.org/geo/islands': Permission denied
>>> 419 419 17983
>>> $ find jidanni.org ! -readable -prune -type f|wc
>>> 0 0 0
>>>
>>> Anyway, the challenge is to get the same output as
>>> $ find jidanni.org -type f 2>&-|wc
>>> 419 419 17983
>>> without the 2>&- .
>>
>> ~/tmp$ find . \! -readable -prune , -type f | wc
>> 2 2 36
>> ~/tmp$ find . -type f | wc
>> find: `./unr': Permission denied
>> 2 2 36
JM> Nice example. I had to look up the "," operator.
OK, it works. Please add such an example to the man page. Thanks.