In your log line sample there are two lines with the same first number. however if the first number is the log line and you use a sample where all the first numbers are different this shows you how to create a hash of arrays where the key is the first number in the line.

#!/usr/bin/perl use strict; my @sample = ("483 OS dx-32 1 charles list4 aardvark.com ty-off lx-on C 01", "495 DS dx-14 1 james list3 23.456.12.7 ty-on lx-on B 01", "769 XO dx-32 5 sully nolist widgets.com ty-on lx-on V 07"); my %hoa; foreach my $line (@sample){ my @array = split(/ /, $line); my $key = $array[0]; $hoa{$key} = \@array; #this is a reference } my @keys = keys %hoa; foreach my $item(@keys){ print "log line $item\n"; my @array = @{$hoa{$item}}; #this is dereferenced foreach my $part(@array){ print "$part - ";} print "\n"; }
This will not work if you eliminate the my designation for @array.

In reply to Re: array of hashes, categorized by array index by bdalzell
in thread array of hashes, categorized by array index by tevus_oriley

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.