-- Pat Howe <[EMAIL PROTECTED]>
> I am trying to work thru the one of the scripts that I inherited and I was
> wondering if someone could shed some light on why the author used a UNIX
> PIPE to uncompress a file.
Few reasons:
(1) Many file systems blow up w/ files > 2GB, they are a
mess in any case. Dumping the output to a pipe avoids
the issue, so long as the sqished output is < 2GB.
(2) If you dump the output to a flat file then you need
the dump space + zip output space. Dumping to a named
pipe puts only the squished stuff on media.
(3) Saving Truly Large (tm) files to the disk causes
much more kernel overhead than spitting the data
into a pipe; savings there is time and overhead
(leaves more cycles and I/O bandwidth avilable for
other proc's running on the box).
--
Steven Lembark 2930 W. Palmer
Workhorse Computing Chicago, IL 60647
+1 800 762 1582
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Author: Steven Lembark
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