On 11/05/2013 05:33 PM, Reco wrote:
> Hi.
>
> On Tue, Nov 05, 2013 at 04:25:13PM +0200, Lars Noodén wrote:
>>> On Tue, Nov 05, 2013 at 03:13:10PM +0400, Reco wrote:
>>>> perl -e 'for(<popularity-*>){((stat)[9]<(unlink))}'
>>
>> I have two questions. Why < before unlink and why stat[9] there?
>
> You have to pass unlink something to delete. Stat is called
> without an argument, hence $_ is used for stat too.
> '<' is used to give unlink something to work with. Try it like this:
>
> perl -e 'for(<*>){((stat)[9])>(printf)}'
Ok. It's just there and does not play any functional role.
perl -e 'for(<*>){((stat)[9]);printf}'
>> stat[9] is mtime.
>
> Files are sorted in directory inode by mtime. That saves you sorting
> all the file list in directory.
Interesting.
Thanks,
/Lars
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