Will you be chaining the scripts together in many different ways? Will you be doing anything with the data in between scripts?

You can probably get a long (on unix, at least!) with a driving shell script and real pipeline, for the simpler things -- no need for perl and system. If this starts growing and you need more power, you might prefer to refactor the individual scripts into modules (see perlmod and perlmodlib if you aren't familiar with how to do this), and have the main script drive the various modules in the same process.

It's quite possible to let a module have a standalone entry point (sort of like a "main" function) for using it from the command line, while still offering a programmatic interface. This lets you mix and match your usage to whatever's convenient. The trick is to put this somewhere near the beginning of your module: 

if (!caller) {
    main();
    exit;
}

sub main { # only used when called from the command line
    # ...
}

[download]

In reply to Re: Chaining scripts smartly by gaal
in thread Chaining scripts smartly by loris

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.