Depends on what “everywhere” means.

In all the programs that the Perl script invokes? That's simple: set some key in %ENV. F.ex, $ENV{PATH} is the same as what passes for $PATH in the shell and changes the path inside your Perl script and for all programs that your Perl script calls.

Do you mean in the program that invoked the shell script? That's either tricky or impossible, depending on the invoking program. If the Perl script is invoked from shell, then you need to print the values as shell code, capture this output with backticks, and eval it in the shell — as in eval `perl -le'print "PATH=$ENV{PATH}:/tmp/foobar/\n"'`. Yes, it's a bit dizzying… If the invoking program is not a shell, then the answer is probably “no can do”.

Makeshifts last the longest.

In reply to Re: Exporting variables from perl script to shell by Aristotle
in thread Exporting variables from perl script to shell by hash

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.