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From: jrwsnsr@nmtsun.nmt.edu (Jonathan R. Watts)
Newsgroups: comp.sys.ibm.pc
Subject: Re: 4DOS file concatenation problem -- WARNING!
Keywords: 4DOS 3.0
Message-ID: <4018@nmtsun.nmt.edu>
Date: 28 Mar 90 01:40:10 GMT
References: <2143@darkstar.ucsc.edu>
Distribution: na
Organization: New Mexico Tech, Socorro NM
Lines: 25

In article <2143@darkstar.ucsc.edu>, mee@ucscb.UCSC.EDU (Kevin Kahl) writes:
> It seems that 4DOS version 3.0 has a new bug.  I wrote a device driver that
> is in two parts.  These are the commands that I used (in a batch file under
> 4DOS v2.2) to concatenate the to files into one:
> 
> 	copy /b password.bin+password.txt password.sys
> 
> The resulting file does not include everything!  "password.bin" is 859 bytes
> in length.  "password.txt" is 4000 bytes.  The resulting "password.sys" is
> only 4083 bytes, though.  Under 4DOS 2.2, the resulting length was 4859 (as
> it should be).  Upon further investigation, I found that the 84th byte in
> "password.bin" is a EOF character, but the "/b" directive should have
> caused 4DOS to ignore this.

Have you tried putting the /B after the list of concatenated files?  As in:

   copy password.bin+password.txt /b password.sys

I remember reading in the update file for 3.0 that the /a and /b parameter
interpretation was altered somehow.  According the help on copy, what you did
SHOULD work, but oh well.  Try it the above way.
 
  - Jonathan Watts
 
jrwsnsr@jupiter.nmt.edu (Internet address)