I have a large file around 1.4 G. I am having trouble parsing it line by line and storing it in a single data structure (such as hash of arrays).
My file is like this :
bos-mp96h:~ jvx$ head asgn.txt
ra_uuid: a37bbde8-36ba-11e8-a697-00e081ea0e98
cms_uuid: 2d937c7e-36ba-11e8-91f1-00e081ea0e8e
mpd_uuid: 6edd7a68-36b0-11e8-a120-00e081ea0e5c
amLeader: 1
numAssignments = 20956857
mpg=1 mrule=140 reg=7989 score=10625 rank=0 perc=100 mp_demand=40
mpg=2 mrule=140 reg=7989 score=10625 rank=0 perc=100 mp_demand=40
mpg=3 mrule=150 reg=7989 score=0 rank=0 perc=100 mp_demand=20
mpg=4 mrule=150 reg=7989 score=10625 rank=0 perc=100 mp_demand=40
So what I am rather doing is that making different file for each index and then process that.
What I want is a different file for every other "mrule".
So for the above snippet, I will have two files, each for mrule 140 and mrule 150.
My code for it is as follows :
#! /usr/bin/perl -w
use strict;
use warnings;
use Data::Dumper ;
my $source = shift ;
my $lines_per_file = shift ;
open (my $FH, "<$source") or die "Could not open source file. $!";
open (my $OUT, '>', '00000000.log') or die "Could not open destinatio
+n file. $!";
my $i = 0;
my $index_last = 0 ;
my $index_current = 0;
while(my $line = <$FH>) {
next unless ($line =~ /mrule/) ;
if ($line =~ /mrule=([0-9]+)/){
print $OUT $line;
$i++ ;
if ($1 != $index_last){
$index_current = $1 ;
close($OUT);
my $NEW = sprintf("%08d", $index_current);
open($OUT, ">${NEW}.log") or die "Could not open desti
+nation file. $! " ;
}
$index_last = $index_current ;
}
}
close($FH);
close($OUT);
But when I run this, I get this following error,
bos-mp96h:~ jvx$ ./partition_file.pl asgn.txt
Can't use string ("00000140") as a symbol ref while "strict refs" in u
+se at ./partition_file.pl line 26, <$FH> line 6.