I don't see what I am doing wrong in printing out the values in the
hash. I am inputting a file with records of varying number of fields and
want to put them in a hash. My output says Use of uninitialized value in
concatenation (.) or string at sample.pl line 35, <INFILE> line 1.
=> test2
Sample input file "test2,MS-Windows-NT,Silver,NPRO30DINCR,Client
JXWGTI7R5CHD1 WINDOWS NT,Schedule test2_full_1700 FULL 604800"
#!/usr/bin/perl
use strict;
use warnings;
print "Enter the filename of input file with full path\n";
my $input_file = <>;
chomp($input_file);
# check to see if input file exist
if ( -e $input_file) {
open( INFILE, "<", "$input_file") or
die "$input_file does not exists: $!";
}
my %policy_Hash=();
my ($parameters);
while (<INFILE>) {
my @n = split /,/, $_;
my $number_of_elements = scalar @n;
print scalar @n, "\n";
my ($policy_name,$i,$element);
($policy_name,$parameters) = split( /,/, $_, 2 );
print "policy_name = $policy_name has $number_of_elements elements\n";
for ( $i=0; $i <= $number_of_elements-1; $i++ ) {
$element = (split /,/, $_)[$i];
print "this is element i=$i $element\n";
$policy_Hash{$policy_name}{ 'element_$i'}=
(split /,/, $_)[$i];
# $policy_Hash{$policy_name}{ 'element_$i'}=
$element;
}
my ($key,$value);
while ( $key,$value= each(%policy_Hash) ) {
print "$key => $value \n";
}
} #end while
close(INFILE);
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