Thanks for pointing out this exception. Exception shouldn't be outputted... As for nmap, it is missing from the database, and will be added. If you spot any other missing command later, feel free to use the 'give feedback' button.

Just added a 'ps' entry on your website.

Having examples for using nmap can be really hand to get an idea of what you do with it, and there's a lot you can do.

I like the idea of this site anyway, good luck in your further developments!

If it helps, I searched for nmap, a bunch of completely unrelated results showed up, which didn't include nmap ;)