1. 安裝必要的軟件
安裝MacPorts需要先安裝X11和Xcode，Lion系統已經默認安裝好了X11，在Appstore里安裝Xcode即可。
下載完Xcode之后，一般路徑在/Application下，可以先將其拷出來，以備后續使用：
$ cp -a /Application/Xcode.app ~/soft
2. 安裝MacPort，並安裝
下載地址：https://distfiles.macports.org/MacPorts/，可以直接下載Lion下的最新版：https://distfiles.macports.org/MacPorts/MacPorts-2.1.1-10.7-Lion.pkg
如果MacPort出現新版本，可以直接通過如下命令進行更新：
$ sudo port -v selfupdate
添加MacPort到環境變量，vi ~/.bash_profile
export PATH=${PATH}:/opt/local/bin:/opt/local/sbin:/opt/local/share/man
3. 比如安裝bash的自動補全軟件：
$ sudo port install bash-completion
Error: No valid Xcode installation is properly selected.
Error: Please use xcode-select to select an Xcode installation:
Error: sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer # version 4.3.2
Error: sudo xcode-select -switch /Users/zhaobinjie/soft/Xcode.app/Contents/Developer # version 4.3.2
錯誤解決方法，1）設置xcode－select的路徑，2）安裝命令行工具：
$ sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer
You can get Xcode from the Mac App Store as a free download. From within that (in the preferences | downloads) you can download and install the command line tools.
4. MacPort常用操作
查詢安裝的ports
$ port -qv install
當安裝新的系統時，卸載安裝的ports
$ sudo port -fp uninstall --follow-dependents installed
清除所有局部的構建
$ sudo port clean all
安裝必須的ports
$ sudo port install portname +variant1 +variant2 …
5. 刪除MacPorts:
#原版使用MacPorts安裝過的軟件在/opt/local目錄下,刪除之前最好查看下,心里有個數.
$ sudo port -f uninstall installed
$ sudo rm -rf \
/opt/local \
/Applications/DarwinPorts \
/Applications/MacPorts \
/Library/LaunchDaemons/org.macports.* \
/Library/Receipts/DarwinPorts*.pkg \
/Library/Receipts/MacPorts*.pkg \
/Library/StartupItems/DarwinPortsStartup \
/Library/Tcl/darwinports1.0 \
/Library/Tcl/macports1.0 \
~/.macports
Reference:
http://www.macports.org/install.php
http://hi.hiing.net/2011/06/use-homebrew-package-management.html