不應該做什么
官網原文：
Installation Instructions
Linux Install
These instructions explain how to install Anaconda on a Linux system.
After downloading the Anaconda installer, run the following command from a terminal:
bash Anaconda-2.x.x-Linux-x86[_64].sh
After accepting the license terms, you will be asked to specify the install location (which defaults to ~/anaconda).
Note: You do NOT need root privileges to install Anaconda, if you select a user writable install location, such as ~/anaconda.* After the self extraction is finished, you should add the anaconda binary directory to your PATH environment variable.
As all of Anaconda is contained in a single directory, uninstalling Anaconda is easy (you simply remove the entire install location directory).
雖然原文里寫You do NOT need root privileges to install Anaconda，其實根本不應該使用root權限（或者sudo）。
如果使用sudo ./Anaconda-2.x.x-Linux-x86[_64].sh的方式安裝，則用戶失去了anaconda文件夾的寫入權限，只剩下執行權限，這樣會導致使用pip或者conda安裝軟件時無法寫入軟件包！！！
安裝程序做了什么
如果是以默認路徑安裝anaconda，安裝程序會在安裝過程中修改～/.bashrc文件，加上了下面一行命令：
export PATH="/home/ric/anaconda/bin:$PATH"