If you put it into a <code> block then a "Download Code" link will appear below your post. Clicking on the link displays the code without the "+"s and you can cut-and-paste from there.

curl 'http://www.muhri.net/gkrellm/nav.php3?node=gkrellmall&sort=name'
+ | perl -ne 'print join"\n",m{href=(/gkrellm/.+?gz)}g' | perl -ne 'qx
+(wget http://www.muhri.net/$_); sleep 2'
[download]