Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!mcsun!ukc!tcdcs!swift.cs.tcd.ie!ditaca!alawlor
From: alawlor@dit.ie (Aengus Lawlor)
Newsgroups: comp.dcom.lans
Subject: Re: What does "link" mean in a 3Com LAN?
Message-ID: <7159.25c96080@dit.ie>
Date: 2 Feb 90 10:27:12 GMT
References: <213.25c4249b@acci.com> <7158.25c887bc@dit.ie>
Organization: Dublin Institute of Technology
Lines: 37

In article <7158.25c887bc@dit.ie>, cahill@dit.ie writes:
> 	If you are not using 3+Menus you could simply adapt f.bat
> 	I see only one problem:
> 
> 	  3+Menus ensures that the PATH and APPEND assignments made by
> 	  f.bat are only temporary and your original settings are preserved.
> 	  How it does this I don't know but would be interested to find out.
> 	  Normally if you run a batch job with such commands your original
> 	  settings will be overwritten.

3+Menus runs COMMAND.COM with F.BAT as a parameter. COMMAND get a copy of
3+Menus Environment table, which F then alters. When F is finished, COMMAND
exits back to 3+Menus, who's environment hasn't been altered. Using 3+Menus
this way chews up a LOT of memory, and many applications will choke on this.

To achieve the same effect without 3+Menus, copy your path to a temporary
variable with 
   SET TPATH=%PATH%
If you invoke APPEND with the /E option the first time you run it(at least
under DOS 3.3), you will get an APPEND environment variable which can be saved
in the same way.
   SET TAPPEND=%APPEND%
At the end of your batch job, set
   PATH %TPATH%
   APPEND %TAPPEND%
   SET TPATH=
   SET TAPPEND=

>  
> Conor Cahill
> Dublin Institute of Technology
> cahill@dit.ie
> 
-- 
Aengus Lawlor    Dept of Computer Science.           Time flies like an arrow,
ALAWLOR@DIT.IE   Dublin Institute of Technology.     Fruit-flies like a banana
                 Kevin Street. Dublin 8. Ireland.