Maybe I'm over simplifying but even though that other answers here are good solutions, it looks from your post you don't care about the vars being global and want the varname used in the config file to be the scripts varname

Just make the format of your config file as follows:
$VARNAME="value";

One define on each line and be sure the last line is '1;' without the quotes.

Add the following line to your script -
require './configfile';

If the directory of the configfile is not the same as the script the substitute the ./ for the directory name i.e. /tmp/

Why didn't I take the Blue Pill

In reply to Re: How to assign a variable with a value read from a config file by WildThing
in thread How to assign a variable with a value read from a config file by tariqahsan

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.