The site I found that taught me is:
http://www.cookiecentral.com/faq/
It covers cookie creation and removal (perl and other languages) and has other information about cookies.
To save you some time, here are the basics:
Setting a cookie:
print "Content-type: text/html\n";
print "Set-Cookie: foo=bar; path=/; expires=Mon, 01-Jan-2001 00:00:00
+GMT\n\n";
Reading a cookie:
@nvpairs=split(/; /, $ENV{'HTTP_COOKIE'});
foreach $pair (@nvpairs) {
($name, $value) = split(/=/, $pair);
}
Use a read in cookie:
$cookie{$name} = $value;
Nowadays I use the CGI.pm module though. Much easier.
(Although I have run into a case where CGI.pm didn't work the way I needed it to.)
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