bash $ ( export QUERY_STRING="foo=bar&baz=foo+bar"; perl x.pl)
tcsh $ (set QUERY_STRING="foo=bar&baz=foo+bar"; perl x.pl)

##</code><code>##

#!/usr/bin/perl
$\="\n"; $,="=";
print "Content-Type: text/plain\n";
map{print $_, $ENV{$_} } keys %ENV;