Heres my take.
# make array print properly
$"="\t"
# assuming this while loop goes through file
while (<INFILE>) {
  # these should remove line changes
  chomp;
  s/\r$//o;
  
  # split and clean $line[0]
  my @line=split (/\t/,$_);
  $line[0]=~s/^"|"$//go;

  # get the aliases from line[4]
  # $1 should be aliases and word 'alias:' is removed
  $line[4]=~s/(?:alias:)? ([\d\s,]+)"$/$1/o;
  # place things back and add $line[0]
  $line[4].="alias: $1, $line[0]\"";

  # get the new alias and place it $new_alias
  my $new_alias;
  $line[0]="\"$new_alias\"";
  # assuming we want newline use this, change "\n" if want different
  print OUTFILE "@line\n"
}

[download]

This is untested so i cannot be sure it works.

UPDATE:
Forgot the "" in $line4, fixed that

In reply to Re: Strip data from end of an element of an array by Hena
in thread Strip data from end of an element of an array by Anonymous Monk

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.