Re: Proposal for psql wildcarding behavior w/schemas

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От Alvaro Herrera
Тема Re: Proposal for psql wildcarding behavior w/schemas
Дата
Msg-id Pine.LNX.4.44.0208061149380.5069-100000@cm-lcon1-46-187.cm.vtr.net
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Ответ на Re: Proposal for psql wildcarding behavior w/schemas  ("Nigel J. Andrews" <nandrews@investsystems.co.uk>)
Ответы Re: Proposal for psql wildcarding behavior w/schemas
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Nigel J. Andrews dijo: 

> Hmm...that's not how I've always understood shell quoting, at least for bash:
> 
> ~$ aa=3
> ~$ perl -e 'print join(",",@ARGV), "\n";' "1 $aa 2 3" 4 5 6
> 1 3 2 3,4,5,6
> ~$

What's the difference?  What your example is saying basically is that
the shell is treating the "1 $aa 2 3" as a single parameter (i.e. spaces
do not have the usual parameter-separating behaviour), _but_ variables
are interpreted.  Using '' prevents variable substitution, so 

> ~$ perl -e 'print join(",",@ARGV), "\n";' '1 $aa 2 3' 4 5 6

should give
1 $aa 2 3,4,5,6

-- 
Alvaro Herrera (<alvherre[a]atentus.com>)
FOO MANE PADME HUM



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