Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!lll-winken!elroy.jpl.nasa.gov!usc!wuarchive!uunet!cbmvax!amix!skrenta
From: skrenta@amix.commodore.com (Rich Skrenta)
Newsgroups: comp.unix.amiga
Subject: Re: Amiga 3000UX first impressions
Keywords: Amiga unix 3000UX
Message-ID: <843@amix.commodore.com>
Date: 17 Jan 91 19:43:39 GMT
References: <1991Jan10.063919.6317@ux1.cso.uiuc.edu> <157@tcr.UUCP> <5187@auspex.auspex.com>
Organization: Commodore-Amiga Unix Development
Lines: 29

In article <5187@auspex.auspex.com>, guy@auspex.auspex.com (Guy Harris) writes:
> Given that S5R4 has a BSD-style "rename()" call, one would hope it
> works; that presumes that AT&T fixed "mv" not to waste its time with
> "/usr/lib/mv_dir" and just use "rename" to move stuff (including
> directories).

These questions are easily answered with one of my favorite release 4
commands, truss.  Truss is a system call tracer:

	$ mkdir one
	$ truss mv one two
	execve("/usr/bin/mv", 0xC07FFF00, 0xC07FFF10)  argc = 3
	open("/dev/zero", O_RDONLY, 0)			= 3
	getuid()					= 0  [ 0 ]
	getuid()					= 0  [ 0 ]
	getgid()					= 0  [ 0 ]
	getgid()					= 0  [ 0 ]
	close(3)					= 0
	lxstat(2, "one", 0x80004F28)			= 0
	lxstat(2, "two", 0x80004FB0)			Err#2  ENOENT
	rename("one", "two")				= 0
	_exit(0)
	$

Yes, mv uses rename().

Rich
-- 
skrenta@amix.commodore.com