Well, I've got to kick that question back to you. How would you know, as a human being, which arguments on the command line are filenames, and which ones are columns within filenames?

You can't teach a computer to do what you yourself cannot compute, or decide how to compute. So first, teach me, and I can help you figure out the code.

For example, what rule can you use to distinguish a, the filename, from a, the column name?

I think that the way you've stated your problem, it's intractable, which is why I keep kicking it back. You'll need to annotate the column names distinctly from the filenames somehow.

-- Randal L. Schwartz, Perl hacker

In reply to RE: RE: RE: RE: Re: @ARGV Manipulation by merlyn
in thread @ARGV Manipulation by Limo

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.