From: matthi@finlandia.Infodrom.North.DE (Matthias Kopfermann)
To: zsh-users@math.gatech.edu
Subject: pipelines and &&
Date: Mon, 25 May 98 11:46 MET DST [thread overview]
Message-ID: <m0ydtqL-001MsmC@finlandia.Infodrom.North.DE> (raw)
I would very much like to know how sublists and pipelines are done:
I read the following without understanding how to do it:
"If two pipelines are separated by ``&&'', the second
pipeline is executed only if the first is successful (returns a zero
value). If two pipelines are separated by ``||'', the second is
executed only if the first is unsuccessful (returns a nonzero value).
Both operators have equal precedence and are left associative."
now i try something like:
ls | wc && | less (just to understand the mechanism)
^ ^
There are two pipelines 1) | wc
2) | less
They are separated by &&.
Result: "zsh: parse error near `|'"
I seem to do it wrong.
could you give some examples here?
next reply other threads:[~1998-05-25 9:55 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-05-25 9:46 Matthias Kopfermann [this message]
1998-05-25 10:36 ` Thomas Koehler
1998-05-26 18:01 ` Matthias Kopfermann
1998-05-26 19:38 ` Bart Schaefer
1998-05-25 16:38 ` Bart Schaefer
1998-05-25 10:46 John Riddoch
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