What the Camel does or doesn't say is mostly irrelevant. If your coding standards allow for exit() within a subroutine, then use it. However, most of the community has come to expect die() within subroutines and exit() (if it's even used) from the main scope.

Now, die() and exit() do different things. The biggest difference is 

eval {
    print "Inside\n";
    die;
};
print "Outside\n";
----
Inside
Outside

[download]
vs. 
eval {
    print "Inside\n";
    exit;
};
print "Outside\n";
----
Inside

[download]
exit() exits, end of story. die() allows for some manner of error trapping. This is the main reason why die() is preferred within subroutines. You may want to reuse that subroutine somewhere else that wants to be able to trap the abnormal termination. Also, die() triggers $SIG{DIE}, which can also be useful to trap.

My wife's blog

In reply to Re^3: Exiting script from subs by dragonchild
in thread Exiting script from subs by bradcathey

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.