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From: jai@im4u.UUCP
Newsgroups: comp.sys.ibm.pc
Subject: Re-directing the output of commands in a BAT file
Message-ID: <1837@im4u.UUCP>
Date: Sat, 16-May-87 13:49:50 EDT
Article-I.D.: im4u.1837
Posted: Sat May 16 13:49:50 1987
Date-Received: Sat, 16-May-87 21:45:48 EDT
Reply-To: jai@im4u.UUCP (Jai Srinivasan)
Distribution: world
Organization: U. Texas CS Dept., Austin, Texas
Lines: 25


Some time back there was a query about how to re-direct the output of 
every command in a BAT file to another file.  (I didn't save the
original article and can't find it in the news directory now - sorry.)

If the file is FOO.BAT then the command "foo > foo.out" does not
re-direct the output of the commands in foo.  To do that give the
command:

     command /c foo > foo.out

Now the original command processor spawns a child command processor
which runs FOO.BAT as its sole task and exits.  The original command
processor ensures that the output of the child command processor (and
all its children) are re-directed.  Note that the child command
processor (on DOS 3.1 at least) does not have as large an environment
as the original, so if the file FOO.BAT sets a lot of new environment
variables, it will run out of environment space.  Also this re-directs 
only standard output, not standard error: nothing from the DOS command
line can help re-direct standard error.

Jai.
-----------------
Jai Srinivasan, UUCP: {gatech,harvard,ihnp4,pyramid,seismo}!ut-sally!im4u!jai
ARPA:  		      jai@im4u.UTEXAS.EDU, jai@sally.UTEXAS.EDU