The problem here is how (and whether) that environment-variable will be set when the CGI/FastCGI script executes. The web-server e.g. Apache sets up a more limited environment so that the runtime behavior of the script is more certain and less subject to undue influence.
In the specific case of a CGI script destined for a known implementation target, I find that setting fixed paths is a reasonable and perhaps desirable technique. You know what the right answers are and always will be. And, as noted above, I isolate it into one root script which is known to have global influence upon the rest of it. Your Mileage May Vary™, but in the specific case I described above, what I chose to do was a most-deliberate choice that did fully consider what you suggest.
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:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- 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
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||