This is a step by step guide for BSD operating systems, which discusses the basics of package management. Each member of the BSD family has a slightly different approach for package management, but all share common themes,
a) FreeBSD Ports and Packages
b) OpenBSD Ports and Packages
c) NetBSD pkgsrc
FTA "...Whichever BSD you use, the basics of package management are similar. Tools such as pkg_add and pkg_delete are available and, although they may differ slightly in usage, moving between them is relatively easy...", Read more...
- FreeBSD changing pkg_add package ftp site location
- FreeBSD keep ports collection up to date in two easy steps