Path: utzoo!dciem!trigraph!michael
From: michael@trigraph.UUCP (Michael Winser)
Newsgroups: comp.unix.wizards
Subject: shell wierdness
Message-ID: <360@trigraph.UUCP>
Date: 3 Feb 88 23:04:13 GMT
Article-I.D.: trigraph.360
Posted: Wed Feb  3 18:04:13 1988
Reply-To: michael@trigraph.UUCP (Michael Winser)
Organization: Trigraph Inc., Toronto, Canada
Lines: 40

This is a little hard to explain so bear with me if I get a little
vague.

I have two filters foo and bar

they are meant to be used as follows:

foo arg1 | bar arg2 > file

Yet when I do this, they consistantly generate a new line on the 
terminal.  If I pipe to cat instead of redirecting to file the
results are the same *most* of the time!

If I run them seperately:

foo arg1 > /tmp/foo 
bar arg2 < /tmp/foo > /tmp/bar

then all goes well and nary a line to be seen!

If I enclose the pipeline in parens:

( foo arg1 | bar arg2 ) > file

then again, *no* newline to be seen.

This happens in both the Bourne shell and the Korn shell,
but *not* with the csh.

If you know what is going on or have heard of some wierd shell bug/feature
please send me email.


Michael

-- 
...utscri!trigraph!michael            Michael Winser
michael@trigraph.UUCP                 Trigraph Inc.
                                      5 Lower Sherbourne St. #201
(416) 363-8841                        Toronto,Ontario M5R 3H8