Ubuntu16.04下Anaconda的安装和卸载

一、去官网下载Anaconda，我下载的是Anaconda3

二、安装Anaconda3

1、下载完成后命令行进入 Anaconda3-5.3.1-Linux-x86_64.sh 所在的路径：

vision@vision-PC:~/Downloads$ bash Anaconda3-5.3.1-Linux-x86_64.sh 
Welcome to Anaconda3 5.3.1
In order to continue the installation process, please review the license
agreement.
Please, press ENTER to continue
>>>

然后根据提示，按回车确认。
它会提示你是否接受协议，这里直接输入yes，再按回车即可（不要直接按回车，这样默认是no）

Do you accept the license terms? [yes|no]
[no] >>> yes

接下来会提示你指定安装路径，这里可以使用默认的，也可以自己指定，最好自己指定文件路径，方便以后维护

Anaconda3 will now be installed into this location:
/home/vision/anaconda3

  - Press ENTER to confirm the location
  - Press CTRL-C to abort the installation
  - Or specify a different location below

[/home/vision/anaconda3] >>> /home/vision/Softwares/Anaconda3

然后就是等待安装进程完成，完成后会提示你是否要将Anaconda的安装路径添加到PATH环境变量中，必须输入yes（不要直接按回车，这样默认是no），否则需要自己设置环境变量。

installation finished.
Do you wish the installer to prepend the Anaconda3 install location
to PATH in your /home/hj/.bashrc ? [yes|no]
[no] >>> yes

配置后的环境遍历如下：

# added by Anaconda3 5.3.1 installer
# >>> conda init >>>
# !! Contents within this block are managed by 'conda init' !!
__conda_setup="$(CONDA_REPORT_ERRORS=false '/home/vision/Softwares/Anaconda3/bin/conda' shell.bash hook 2> /dev/null)"
if [ $? -eq 0 ]; then
    \eval "$__conda_setup"
else
    if [ -f "/home/vision/Softwares/Anaconda3/etc/profile.d/conda.sh" ]; then
        . "/home/vision/Softwares/Anaconda3/etc/profile.d/conda.sh"
        CONDA_CHANGEPS1=false conda activate base
    else
        \export PATH="/home/vision/Softwares/Anaconda3/bin:$PATH"
    fi
fi
unset __conda_setup
# <<< conda init <<<

之后就是等待安装完成，Anaconda3 安装完成提示是否安装VSCode，这里选择yes。如下：

For this change to become active, you have to open a new terminal.

Thank you for installing Anaconda3!

===========================================================================

Anaconda is partnered with Microsoft! Microsoft VSCode is a streamlined
code editor with support for development operations like debugging, task
running and version control.

To install Visual Studio Code, you will need:
  - Administrator Privileges
  - Internet connectivity

Visual Studio Code License: https://code.visualstudio.com/license

Do you wish to proceed with the installation of Microsoft VSCode? [yes|no]
>>> 


Do you wish to proceed with the installation of Microsoft VSCode? [yes|no]
>>> yes
Proceeding with installation of Microsoft VSCode
VSCode is already installed!

三、验证Anaconda3是否安装成功

重新打开一个终端，输入pyhton

vision@vision-PC:~$ python
Python 3.7.0 (default, Jun 28 2018, 13:15:42) 
[GCC 7.2.0] :: Anaconda, Inc. on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>

如上图所示, python环境已经自动由Anaconda进行托管

四、Anaconda3的卸载

1、删除整个anaconda目录：
由于Anaconda的安装文件都包含在一个目录中，所以直接将该目录删除即可。到包含整个anaconda目录的文件夹下，删除整个Anaconda目录：

rm -rf Anaconda3安装路径

2、清理下.bashrc中的Anaconda路径：

打开终端并输入：

sudo gedit ~/.bashrc

在.bashrc文件末尾，删除掉Anaconda3写入的东西

# added by Anaconda3 5.3.1 installer
# >>> conda init >>>
# !! Contents within this block are managed by 'conda init' !!
__conda_setup="$(CONDA_REPORT_ERRORS=false '/home/vision/Softwares/Anaconda3/bin/conda' shell.bash hook 2> /dev/null)"
if [ $? -eq 0 ]; then
    \eval "$__conda_setup"
else
    if [ -f "/home/vision/Softwares/Anaconda3/etc/profile.d/conda.sh" ]; then
        . "/home/vision/Softwares/Anaconda3/etc/profile.d/conda.sh"
        CONDA_CHANGEPS1=false conda activate base
    else
        \export PATH="/home/vision/Softwares/Anaconda3/bin:$PATH"
    fi
fi
unset __conda_setup
# <<< conda init <<<

保存并关闭文件

3.使其立即生效，在终端执行：
source ~/.bashrc

4.关闭终端，然后再重启一个新的终端，这一步很重要，不然在原终端上还是绑定有Anaconda3.

Ubuntu16.04下Anaconda的安装和卸载

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