🚀 go-pugleaf

! > Is it possible with a simple shell (any shell) command to know if a
! > specific file is actually opened by another process?
! 
! No.

It sure is, provided that you're on certain systems.  The following were
snipped from the announcement of "ofiles2":

: From: ehrlich@margaux.inria.fr (Robert Ehrlich)
: Newsgroups: comp.sources.unix
: Subject: v25i072: ofiles2 - a portable version of ofiles (show list of open file
: s)
: Message-ID: <1991Dec20.223459.12517@PA.dec.com>
: Date: 20 Dec 91 22:34:59 GMT
: 
: Submitted-By: ehrlich@margaux.inria.fr (Robert Ehrlich)
: Posting-Number: Volume 25, Issue 72
: Archive-Name: ofiles2
: 
: This is a heavily reworked version of ofiles. Ofiles shows identifys the
: opener of a file.  It was modified to be more portable and is known to work
: on several architectures :
: 
:         - Suns 3 and 4 under SunOs from 3.0 to 4.1.1
:         - Sony 1xxx 68k under newsOS 3.0 to 4.0
:         - Sony 3xxx RISC under newsOS 3.5 to 4.0
:         - Decstation 3100 under Ultrix 2.2 to 4.1
:         - Pyramid OSX 5.0 (with vtophys.c from OSX sources)
:         - Vax BSD4.3 and Ultrix
:         - Sequent DYNIX 3.0
:


and this is cut from ls -l output at ftp.uu.net:

usenet/comp.sources.unix/volume25:
-rw-r--r--  1 archive     23019 Dec 20  1991 ofiles2.Z
-rw-r--r--  1 archive      8926 Dec 19  1991 ofiles.pch.Z
usenet/comp.sources.unix/volume18:
-rw-r--r--  1 archive     17324 Oct 15  1989 ofiles.Z
-rw-r--r--  1 archive     17429 Oct 15  1989 ofiles.new.Z
usenet/comp.sources.unix/volume18/hat-n-coat:
-rw-r--r--  1 archive     17114 Mar 23  1989 ofiles.Z
-rw-r--r--  1 archive     17135 Mar 23  1989 ofiles.new.Z


  ~~harald E.