From owner-freebsd-hackers  Tue Aug 13 02:32:38 1996
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Date: Tue, 13 Aug 1996 11:32:02 +0200
From: peppe@unipg.it (Giuseppe Vitillaro)
Message-Id: <9608130932.AA08532@egeo.unipg.it>
To: freebsd-hackers@FreeBSD.org, freebsd-questions@FreeBSD.org
Subject: AIX/6000 fuser command
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I found particulary useful im my experience the AIX
"fuser" command.

This little AIX command let to get the PIDs of the
processes that are keeping open a file.

If you use it for example on a syslog file like:

fuser daemon.log
daemon.log:     3461

you will get the PID of the syslogd daemon.

Two related questions:

(1) does an equivalent command exist under FreeBSD?

(2) in the case the answer to the first question would be "NO",
    have the FreeBSD the primitives to build a tools like fuser?

Thank in advance, Peppe.