I use the command line because later on, I am going to port exercises from the O'Reilly book Data Science at the Command Line to Perl. This nonsensical idea that Perl is unsuited for "data science" tasks (which is really data cleaning/munging) needs to be refuted.

Data Science at the Command Line link

I think this ability to do quick things at the command line is an advantage that Perl has over Python.

You do bring up a good point about the quoting. How should I make this more general, to make clear these one-liners work (with some modification) on all systems that have Perl and PDL installed?

In reply to Re^2: RFC: 101 Perl PDL Exercises for Data Analysis by thechartist
in thread RFC: 101 Perl PDL Exercises for Data Analysis by thechartist

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.