mothur manul

Hi Everyone,
I was wondering if there is any manual that describes all the commands used in mothur. I have a Illumina 16s RNA metagenomic data and I want to do analysis using mothur. I have around 7 million reads which at peresent I am aligning to RDP db using align.seqs command. I want to use DOTUR to determine OTUs.
Please help!!!

just find this on mothur’s website, keep searching by self before asking.

These 2 links may be helpful.