Environmental Variables

Prints out all the environmental variables nicely.

#!/usr/local/bin/perl

@degiskenler = keys %ENV;
@degiskenler = sort @degiskenler;

print "Content-type: text/html; charset=iso-8859-9\n\n";
print "<HTML>\n";
print "<BODY>\n";
print "<H2>Environmental Variables</H2><BR>";

print "<TABLE BORDER=1 ALIGN=MIDDLE> \n";

foreach $degisken (@degiskenler)
{
    print "<TR> \n";
    print "<TD> $degisken </TD> \n";
    print "<TD> $ENV{$degisken} </TD> \n";
    print "</TR> \n";
}

print "</TABLE>";
print "</BODY>";
print "</HTML>"
[download]

Comment on Environmental Variables Download Code

Replies are listed 'Best First'.
RE: Environmental Variables by athomason (Curate) on Aug 27, 2000 at 12:57 UTC
Or: `#!/usr/bin/perl -w use strict; use CGI ":standard"; print header, start_html('CGI Environment Dump'), h2('CGI Environment Dump'), table({-border=>1}, Tr([map td(["$_", "$ENV{$_}"]), sort keys %ENV])), end_html;` [download]	[reply] [d/l]
RE: RE: Environmental Variables by merlyn (Sage) on Aug 27, 2000 at 15:51 UTC
Neither of these fix problems with less-thans or greater-thans or ampersands in the environment (not "environmental") variables. So, either dump them as `text/plain`: `#!/bin/sh echo content-type: text/plain echo printenv` [download] Or escape them properly: `#!/usr/bin/perl use CGI ":all"; use HTML::Entities; print header, start_html("env"), h1("env"), # can't have h2 without h1, c'mon! table({-border => 1}, Tr([map td([map encode_entities($_), $_, $ENV{$_}]), sort keys %ENV])), end_html;` [download] -- Randal L. Schwartz, Perl hacker	[reply] [d/l] [select]