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rpjday wrote:
>just as a philosophical comment, the first way is of course the
>preferred way. as more than one unix book has pointed out,
>whenever you see a "pipeline" of the form:
>
> $ cat (file) | cmd ...
>
>you can almost always rewrite it as:
>
> $ cmd ... < (file)
>
>as far as i know, there is no reason to use the pipe if your
>only purpose is to "cat" a file into it.
I usually find it easier to remember best-practices if I know the
reason, so perhaps we should also point out that we do this because
the former construct uses more resources than the latter. Try running
both constructs as arguments to "time", and see the difference.
It might only be microseconds, but that can add up to a wallop in a
big job.
- -d
- --
David Talkington
http://www.spotnet.org
PGP key: http://www.prairienet.org/~dtalk/dt000823.asc
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