SPUG: Multiple uses of <STDIN> in a script?

[Tim Maher/CONSULTIX]

>> Message submitted at: Fri Oct 15 14:07:12 PDT 1999
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Sorry, I originally posted this to a different list!  Here it is for SPUG.

According to Tim Maher/CONSULTIX:

> Good point about buffer size. However xargs isn't a good option here,
> as xargs interferes with STDIN, often causing unexpected results in
> the target program.

xargs might indeed be a lousy option for Ryan, especially if he wants
to read all the incoming filenames with a single instance of his script.

That's why I think his pipeline input approach should be preserved,
and the Perl script changed to handle it.

What exactly do you mean by "xargs interferes with STDIN"?  The only
drawback I see is that "find . -print | xargs perl_script_taking_args"
would execute an unpredictable number of separate instances of the
perl script (each being invoked with the maximum permitted number of
arguments), which might be less desirable than a single instance reading
an "infinite" amount of pipeline input.  However, in cases like
	find . -print | xargs chmod o-r
this issue of separate instances being run is of no concern whatsoever!
 
> jim
*==================================================================*
| Tim Maher, PhD  CEO, Consultix &    (206) 781-UNIX/8649          |
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