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Date: Sat, 10 Jan 2009 11:00:37 -0800
From: Tim Kientzle <kientzle@freebsd.org>
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To: Mike Meyer <mwm@mired.org>
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Cc: freebsd-hackers@freebsd.org, Sheldon Givens <sheldon@sigsegv.ca>
Subject: Re: Small change to 'ps'
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Mike Meyer wrote:
>  How about borrowing from existing commands that
> already implement this functionality (zfs and zpool) and using `-H',
> which is relatively rarely used elsewhere?

Every BSD command that walks a filesystem supports
-L, -P, and -H with consistent semantics:

-L  Logical traversal (follow all symlinks)
-P  Physical traversal (follow no symlinks)
-H  Hybrid traversal (follow symlinks given on command line)

Tim