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From: nather@ut-sally.UUCP (Ed Nather)
Newsgroups: comp.sys.ibm.pc
Subject: Re: batch files calling batch files
Message-ID: <7871@ut-sally.UUCP>
Date: Sun, 26-Apr-87 13:15:13 EDT
Article-I.D.: ut-sally.7871
Posted: Sun Apr 26 13:15:13 1987
Date-Received: Sun, 26-Apr-87 23:37:58 EDT
References: <626@cod.UUCP> <1610013@hpcvlo.HP.COM>
Organization: U. Texas CS Dept., Austin, Texas
Lines: 23

In article <1610013@hpcvlo.HP.COM>, bill@hpcvlo.HP.COM (Bill Frolik) writes:
> 
> To call another batch file from within a batch file, just invoke another
> copy of COMMAND.COM with a /C switch:
> 
> Be aware that since you are invoking a new command interpreter, the called
> batch file will live in a new "environment" (i.e., any variables that you
> have SET will not exist to the called file, 

Not true.  A copy of the current environment is supplied to the new command
interpreter.

> and any variables that it SETs
> will disappear when control returns to the caller).

This is true, unless your program can "set" a new string into the "living
environment" rather than the copy.  It is tedious but possible.

-- 
Ed Nather
Astronomy Dept, U of Texas @ Austin
{allegra,ihnp4}!{noao,ut-sally}!utastro!nather
nather@astro.AS.UTEXAS.EDU