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Full Discussion: Ordering batch number
Top Forums Shell Programming and Scripting Ordering batch number Post 302843425 by Skrynesaver on Tuesday 13th of August 2013 07:04:08 AM
Old 08-13-2013
The following does what you want, if you need to compare the DATE field as well it will obviously require modification.

Code:
#!/usr/bin/perl

use strict;
use warnings;
use File::Copy;
my %batch;
opendir(my $src, "/tmp/folder1")|| die "Could not open /tmp/folder1: $!\n";
while (my $f=readdir($src)){
    if ($f !~/^\.+/){
          open (my $transaction , "<", "/tmp/folder1/$f")|| die "Could not open file \"/tmp/folder1/$f: $!\n";
          my $head=readline($transaction);
          close($transaction);
          $batch{$f}=$1 if ($head=~/BATCHNO=(\d+)/);
    }
}
my $index=0;
for my $file (sort {$batch{$a}<=>$batch{$b}} keys %batch){
    copy("/tmp/folder1/$file", "/tmp/folder2/$index");
    $index++;
}

 

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LEARN ABOUT MOJAVE

file::checktree

File::CheckTree(3pm)					 Perl Programmers Reference Guide				      File::CheckTree(3pm)

NAME

       File::CheckTree - run many filetest checks on a tree

SYNOPSIS

	   use File::CheckTree;

	   $num_warnings = validate( q{
	       /vmunix		       -e || die
	       /boot		       -e || die
	       /bin		       cd
		   csh		       -ex
		   csh		       !-ug
		   sh		       -ex
		   sh		       !-ug
	       /usr		       -d || warn "What happened to $file?
"
	   });

DESCRIPTION

       The validate() routine takes a single multiline string consisting of directives, each containing a filename plus a file test to try on it.
       (The file test may also be a "cd", causing subsequent relative filenames to be interpreted relative to that directory.)	After the file
       test you may put "|| die" to make it a fatal error if the file test fails.  The default is "|| warn".  The file test may optionally have a
       "!' prepended to test for the opposite condition.  If you do a cd and then list some relative filenames, you may want to indent them
       slightly for readability.  If you supply your own die() or warn() message, you can use $file to interpolate the filename.

       Filetests may be bunched:  "-rwx" tests for all of "-r", "-w", and "-x".  Only the first failed test of the bunch will produce a warning.

       The routine returns the number of warnings issued.

AUTHOR

       File::CheckTree was derived from lib/validate.pl which was written by Larry Wall.  Revised by Paul Grassie <grassie@perl.com> in 2002.

HISTORY

       File::CheckTree used to not display fatal error messages.  It used to count only those warnings produced by a generic "|| warn" (and not
       those in which the user supplied the message).  In addition, the validate() routine would leave the user program in whatever directory was
       last entered through the use of "cd" directives.  These bugs were fixed during the development of perl 5.8.  The first fixed version of
       File::CheckTree was 4.2.

perl v5.18.2							    2014-01-06						      File::CheckTree(3pm)
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