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Re: Interesting utilities

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On 10/16/11 02:18 PM, Kaz Kylheku wrote:
> On 2011-10-11, jacob navia<jacob@spamsink.net>  wrote:
>> I am developing in the Mac OS X (10.7) system, and it has some nice
>> features that I hadn't seen in any windows/unix system.
>>
>> One of them is the "mdfind" utility that is incredibly powerful:
>>
>> mdfind some-identifier
>>
>> will look in the whole machine for "some-identifier" and write you in
>> standard output the name of all files that have a match. It is like
>>
>> grep -R "some-identifier" /*.*
>>
>> but it comes back in seconds instead of hours like grep.
>
> So it is not more powerful than grep, since it computes the same thing. The
> word you are looking for is "faster".
>
> Can it find any regular expression in seconds?
>
>> It is very useful, and I never found something even remotely equivalent
>> under linux/sun os
>
> How hard do you look?
>
> I use id-utils and ctags for doing this over programming projects.
> In id-utils there is a "mkid" utility which indexes the identifiers found
> in a directory tree. This is gathered into a big file called ID.
> The ID file is queried with "lid".
>
> I just set up an Ubuntu system where "apt-get install id-utils"
> got me mkid in seconds.

These utilities are all well and good on a relatively static filesystem, 
but the fun begins when you want to keep the database as up to date as 
possible.

I know all about the fun involved, I have to maintain an index over a 
couple of multi-TB filesystems with tens of millions of files in each!

-- 
Ian Collins

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Interesting utilities jacob navia <jacob@spamsink.net> - 2011-10-11 11:57 +0200
  Re: Interesting utilities Roberto Waltman <usenet@rwaltman.com> - 2011-10-15 00:35 -0400
    Re: Interesting utilities jacob navia <jacob@spamsink.net> - 2011-10-15 13:06 +0200
      Re: Interesting utilities Geoff <geoff@invalid.invalid> - 2011-10-15 10:26 -0700
      [OT] Interesting utilities Roberto Waltman <usenet@rwaltman.com> - 2011-10-15 16:14 -0400
      Re: Interesting utilities Kaz Kylheku <kaz@kylheku.com> - 2011-10-16 01:24 +0000
        Re: Interesting utilities jacob navia <jacob@spamsink.net> - 2011-10-16 09:45 +0200
        Re: Interesting utilities jacob navia <jacob@spamsink.net> - 2011-10-16 14:05 +0200
          Re: Interesting utilities jacob navia <jacob@spamsink.net> - 2011-10-16 14:39 +0200
            Re: Interesting utilities Kaz Kylheku <kaz@kylheku.com> - 2011-10-17 16:38 +0000
  Re: Interesting utilities Kaz Kylheku <kaz@kylheku.com> - 2011-10-16 01:18 +0000
    Re: Interesting utilities Ian Collins <ian-news@hotmail.com> - 2011-10-16 14:34 +1300
  Re: Interesting utilities XeCycle <xecycle@gmail.com> - 2011-10-16 10:42 +0800
    Re: Interesting utilities Kaz Kylheku <kaz@kylheku.com> - 2011-10-16 03:53 +0000
      Re: Interesting utilities XeCycle <xecycle@gmail.com> - 2011-10-16 21:25 +0800

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