fig18_07.pl

PERL语言资料 可以用于PERL程序设计

#!/usr/bin/perl
# Fig. 18.7: fig18_07.pl
# Demonstrating using open to connect different processes.

use warnings;
use strict;

open( DIR, "dir *.* |" ) or die( "Cannot open dir pipe: $!" );
open( MORE, "| more" ) or die( "Cannot open more: $!" );

while ( <DIR> ) {
   print( MORE );
}

close( DIR ) or die( "Cannot close DIR: $!" );
close( MORE ) or die( "Cannot close MORE: $!" );


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