$ ksh << END_OF_KSH > perl << END_OF_PERL > my $foo = qq{ bar \n }; > print qq{ FOO=$foo }; > END_OF_PERL > END_OF_KSH $ echo $FOO $
The astute Shell hackers among us will see a nested set of heredocs. The more astute Shell hackers will say "but $foo is not escaped, nor is it defined within ksh, so perl sees '' instead of $foo." Well, that's what I thought too.
$ echo "$foo" $ echo "\$foo" $foo $ echo << ECHO $foo ECHO $ echo << ECHO \$foo ECHO $ echo << ECHO \\$foo ECHO \ $
So it would seem that the shell escapes things differently within heredocs. How can I get my $foo's through to perl?

brother dep, shell warrior.

--
Laziness, Impatience, Hubris, and Generosity.


In reply to Nested Heredocs and Shell Escapes (code) by deprecated

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.