newbie of oclHashcat-plus 0.07 need brute-force help

[perlish]

I'm really the newbie of oclHashcat-plus 0.07,I read the wiki and manual,but I can not make it run like I need.Anybody would be kind enough to do me a favor,thank you very much!

I want to crack the ntlm wich a-zA-Z1-9 charset with a 6-9 lenght using brute-force crack.
such as "jajH1193N".

What's the command line I should use ? Thank you !