is it some special kind of variable on the 10th line of our last example?
10: $::PROGRAM = basename $0;
You don't indicate which of the two variables in that line that you haven't encountered before.
- $::PROGRAM
This is a package global variable in main. $::var is equivalent to $main::var.
See one of broquaint's other tutorial's Of Symbol Tables and Globs for more information if that was the source of your question.
The all upper case is a loose convention used to indicate global variables.
- $0
This is documented in perlvar. Search for the text "$PROGRAM_NAME".
HTH.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
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, 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, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Outside of code tags, you may need to use entities for some characters:
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
|
|
