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Full Discussion: Problem running Perl Script with huge data files
Top Forums Shell Programming and Scripting Problem running Perl Script with huge data files Post 302436226 by edstertech on Friday 9th of July 2010 05:41:05 PM
Old 07-09-2010
Depending on the task, you could always break the script into 3 scripts:

Script 1 (control script):
Code:
foreach my $t  (@text)
{
    system(text_script.pl $t);
}

foreach my $x  (@xml)
{
    system(xml_script.pl $x);
}

Script 2 (text file processing script):

Code:
my $t = $ARGV[0];
open TEXT, $t or die "Cannot open $t for reading: $!\n";
  
while(my $line=<TEXT>){
   ....My code....
}
close(TEXT);

Script 2 (text file processing script):

Code:
my $x = $ARGV[0];
open XML, $x or die "Cannot open $x for reading: $!\n";
  
while(my $line=<XML>){
   ....My code....
}
close(XML);

This *may* be easier to debug and maintain as well.

Of course this approach won't work if you're trying to collect everything from all the files before doing any data processing...
...but surely you're not trying to do that ...?

Ed
 

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LEARN ABOUT DEBIAN

update-metainit

UPDATE-METAINIT(1)					User Contributed Perl Documentation					UPDATE-METAINIT(1)

NAME

       update-metainit - Generates init scripts

SYNOPSIS

       update-metainit [--remove initname [--purge] ]

DESCRIPTION

       Metainit solves the problem of writing good init scripts. Instead of manually creating these important files, they are derived from a
       declaritive description in the metainit files in /etc/metainit. These files can be shipped with packages or created by the local adminis-
       trator.

       If update-metainit called without argument, it will regenerate init scripts for all the files in /etc/metainit. The generated files contain
       a large warning in form of a comment that they will be overridden. Modifications are preferably done in the files in /etc/metainit and made
       effective by running update-metainit. If needed, the administrator can prevent modified init files by removing the warning comment.

OPTIONS

       --remove initname
	   This command will remove any generated and non-modified scripts that were created by the metainit file with the name initname.

       --purge
	   Only usable with --remove. Will remove the generated files even if modified.

SEE ALSO

       dh_metainit(1)

AUTHOR

       Joachim Breitner <nomeata@debian.org>

perl v5.8.8							    2007-07-30							UPDATE-METAINIT(1)
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