On Sun, 5 Aug 2007, Mr. Shawn H. Corey wrote:


How big are these files? Could you read everything at once? If it's
They're small enough to be slurped. The problem is that the chunk for a
particular command may need to be passed to the shell for processing
before being used by the Perl program. Something like this:
     1          my @all=<STDIN>;
     2          my @chunk=();
     3          for (@all){
     4                  last if /^^D/;
     5                  push @chunk,$_;
     6          }
     7          open(H,"|grep-something-or-whatever|");# yes, I know this 
doesn't work!
     8          for (@chunk){ print H $_;}
     9          while(<H>){
    10          # do the real work now...
    11          }
The problem, of course, starts with line 7...
I took a look at open(W,"|-") and open(R,"-|"). No good, the program is
too complex to deal gracefully with forking...

--
Jorge Almeida

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