A solution using XML::XSH2, a wrapper around XML::LibXML. 
#!/usr/bin/perl
use warnings;
use strict;
use feature qw(say);

use XML::XSH2;

@XML::XSH2::Map::accum_ids = (269, 270, 1962);

xsh << '__XSH__';
    open 1008484.xml ;
    for my $id in { @accum_ids } {
        cd /envelope/body/outputGetUsageSummary/usgSumm/usageAccum[@ac
+cumId=$id] ;
        my $attrs = (@inclUnits | @inclUnitsUsed | @shared) ;
        perl { push @results, $attrs } ;
    }
__XSH__

for my $result (@XML::XSH2::Map::results) {
    say join ' ', map $_->value, @$result;
}

[download]
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re: Fetch field values from API output by choroba
in thread Fetch field values from API output by rkrish

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.