Question for help

Hello,
I am begginer with hashcat, and want to decrypt simple Joomla password (Joomla is popular CMS, and use MD5 {hash}:{salt}).

OS: win XP 32bit
What I am doing is this:

hashcat-cli32 -m 11 -a 0 -o out.txt password.txt

password.txt is file with hash data, and want to decrypt and write result in output.txt.

What I am doing wrong because, I get message "Try --help..."?

Thanks.