Hi,

I'm trying to write a perl script that will execute 2 other perl scripts simultaneously with 2 separate processors in unix. Here's an incredibly simple example that, er, isn't working quite right...

#!usr/local/bin/perl

#Usage: getslack.p file1 file2

if (fork()==0) {
   print "child1\n";
   system ("scrub.ast.p $ARGV[0]");
   exit;
}
if (fork()==0) {
   print "child2\n";
   system ("scrub.pt.p $ARGV[1]");
   exit;
}
wait;
wait;
print "Done!\n";

[download]
Each of the srub.*.p scripts reads in a single (c. 200 Meg) file and writes out a couple of small summary files, with all files ultimately referenced with a close().

Currently, both "child1" and "child2" are printing to the screen, and the *ast.p output looks good, but the *pt.p process never shows up in a cpu. (Both scripts work fine when run independently.) I ultimately get a "Done!" and the *ast.p results.

I would appreciate any hints! Some of the other fork examples I've seen here are far more complicated that what I need to do.

Thank You.

Edit by tye, remove BR, add CODE

In reply to How to use multiple processors with fork in unix? by Anonymous Monk

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