使用portsnap指令

1. portsnap fetch (抓最新版)
2. portsnap extract (解壓縮)
3. portsnap update (更新，但有時會說已是最新版、不理它)

FreeBSD安装軟體時出現錯誤訊息：
pkg(8) must be version 1.3.8 or greater, but you have 1.3.7. You must upgrade the ports-mgmt/pkg port first.
安裝 ports-mgmt/pkg

4.
#cd /usr/ports/ports-mgmt/pkg
#make //編譯
#make reinstall //移除

5.
#pkg2ng

6.
#cat >> /etc/make.conf <<EOF
WITH_PKGNG=yes
EOF