pkg_add

[claxsis]

Hi , I'm a new comer from Japan. And nice to meet everybody .
About a half year ago ,I started to use NET BSD but now encountering a couple of problems. I think they are very primitive matters and your advises are appreciate.

My PC is DELL GX60 , it's CPU 2.4G and memory 512M quite a poor system and Version of NET BSD is 6.1.5 .

First my problem is that I can not handle with binary files , because commands such as "pkg_add " are not recognized as NET BSD instruction. Every time it returned to be responded " not found" Of course ,my default shell is "Bourrn Shell"
So far my current applications have bee installed from /usr/pkgsrc/　
That takes time for cases of big size files. In case of "libreoffice" it took about 2 days and finely erred .
So please advise me .