Perl one-liners inside double-quotes generally aren't a problem on Linux unless there's a scalar variable in the code - and I deliberately crafted my one-liner without inclusion of a scalar variable in order to achieve that portability ;-)

You were also careful to ensure (or just lucky) that your code did not contain any of the default history control characters in a valid combination: !, ^ and #. These can vary from shell to shell and can (in many shells) be changed to other characters by the user. Try some of these rather contrived examples which will work if single quotes are used instead:

IMHO there is no reason not to use single quotes to delimit the entire script on the command line in any non-MSWin32 system and it is almost always the better choice where shell interpolation is not expressly intended.

🦛

In reply to Re^4: pack on unpack with same template by hippo
in thread pack on unpack with same template by jjmoka

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.