[SLE] How to use "man" command?

Hi all, I'm using SUSE10 64bit. I can't use "man" command since I finished the full installation. please see below for example: ==== liu@linux:~> man ls No manual entry for ls liu@linux:~> man echo No manual entry for echo === I think it should be related to a man path varible, but I don't know what and how to fix. Any suggestions are appreciated! Regards! Liu -- Check the headers for your unsubscription address For additional commands send e-mail to suse-linux-e-help@suse.com Also check the archives at http://lists.suse.com Please read the FAQs: suse-linux-e-faq@suse.com