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Date: Fri, 9 Sep 2016 05:36:09 +0000
From: Daniel Shahaf <d.s@daniel.shahaf.name>
To: Zsh Users <zsh-users@zsh.org>
Subject: Re: Fastest way to count # of files?
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Bart Schaefer wrote on Thu, Sep 08, 2016 at 18:09:58 -0700:
> On Sep 8,  1:00pm, Bart Schaefer wrote:
> }
> } This assumes that nlink for a directory is the number of files it
> } contains plus "." and "..".
> 
> Accuracy of this seems to vary by filesystem type, so probably not
> a viable solution.

nlink for a directory $d is usually the two plus number of subdirectories
$d has; it's unrelated to the number of files in $d.  (A directory is
hard linked from its parent, from itself, and from each subdirectory of
itself, but not from files in it.)