conda and anaconda

开源Anaconda Distribution是在Linux，Windows和Mac OS X上执行Python/R数据科学和机器学习的最简单方法。全球有超过1100万用户，它是开发，测试和培训的行业标准。

conda cheatsheet

https://docs.conda.io/projects/conda/en/latest/user-guide/cheatsheet.html

Anaconda是一个免费开源的Python和R语言的发行版本，用于计算科学（数据科学、机器学习、大数据处理和预测分析），Anaconda致力于简化包管理和部署。Anaconda的包使用软件包管理系统Conda进行管理。超过1200万人使用Anaconda发行版本，并且Anaconda拥有超过1400个适用于Windows、Linux和MacOS的数据科学软件包。

Anaconda拥有超过1400个软件包其中包含Conda和虚拟环境管理，他们都被包含在Anaconda Navigator中，因此无需去了解独立安装每个库。可以使用已经包含在Anaconda中的命令conda install或者pip install从Anaconda仓库中安装开源软件包。Pip提供了Conda大部分功能，并且大多数情况下两个可以同时使用。可以使用conda build命令构建自定义包，然后通过上传到Anaconda Cloud、PyPI或其他仓库来分享给其他人。

下载并安装Anaconda

我们可以从https://www.anaconda.com/distribution/下载。本文用的是anaconda2。

注意：Anaconda2默认包含Python 2.7，Anaconda3默认包含Python 3.7，但是你可以创建虚拟环境来使用任意版本的Python包。

[root@xd07dbm01 mnt]# sh Anaconda2-2018.12-Linux-x86_64.sh
Welcome to Anaconda2 2018.12
In order to continue the installation process, please review the license
agreement.
Please, press ENTER to continue
>>>
===================================
Anaconda End User License Agreement
===================================
Copyright 2015, Anaconda, Inc.
All rights reserved under the 3-clause BSD License:
...
...
...
cryptography
    A Python library which exposes cryptographic recipes and primitives.
Do you accept the license terms? [yes|no]
[no] >>>
Please answer 'yes' or 'no':'
>>> yes
Anaconda2 will now be installed into this location:
/root/anaconda2
  - Press ENTER to confirm the location
  - Press CTRL-C to abort the installation
  - Or specify a different location below
[/root/anaconda2] >>> /opt/anaconda2
PREFIX=/opt/anaconda2
installing: python-2.7.15-h9bab390_6 ...
Python 2.7.15 :: Anaconda, Inc.
installing: blas-1.0-mkl ...
installing: ca-certificates-2018.03.07-0 ...
installing: conda-env-2.6.0-1 ...
installing: intel-openmp-2019.1-144 ...
installing: libgcc-ng-8.2.0-hdf63c60_1 ...
installing: libgfortran-ng-7.3.0-hdf63c60_0 ...
installing: libstdcxx-ng-8.2.0-hdf63c60_1 ...
installing: bzip2-1.0.6-h14c3975_5 ...
installing: expat-2.2.6-he6710b0_0 ...
installing: fribidi-1.0.5-h7b6447c_0 ...
installing: gmp-6.1.2-h6c8ec71_1 ...
installing: graphite2-1.3.12-h23475e2_2 ...
installing: icu-58.2-h9c2bf20_1 ...
installing: jbig-2.1-hdba287a_0 ...
installing: jpeg-9b-h024ee3a_2 ...
installing: libffi-3.2.1-hd88cf55_4 ...
installing: liblief-0.9.0-h7725739_1 ...
installing: libsodium-1.0.16-h1bed415_0 ...
installing: libtool-2.4.6-h7b6447c_5 ...
installing: libuuid-1.0.3-h1bed415_2 ...
installing: libxcb-1.13-h1bed415_1 ...
installing: lz4-c-1.8.1.2-h14c3975_0 ...
installing: lzo-2.10-h49e0be7_2 ...
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installing: ncurses-6.1-he6710b0_1 ...
installing: openssl-1.1.1a-h7b6447c_0 ...
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installing: pcre-8.42-h439df22_0 ...
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installing: xz-5.2.4-h14c3975_4 ...
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installing: pycosat-0.6.3-py27h14c3975_0 ...
installing: pycparser-2.19-py27_0 ...
installing: pycrypto-2.6.1-py27h14c3975_9 ...
installing: pycurl-7.43.0.2-py27h1ba5d50_0 ...
installing: pyflakes-2.0.0-py27_0 ...
installing: pyodbc-4.0.25-py27he6710b0_0 ...
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installing: pysocks-1.6.8-py27_0 ...
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installing: cython-0.29.2-py27he6710b0_0 ...
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installing: statsmodels-0.9.0-py27h035aef0_0 ...
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installing: spyder-kernels-0.3.0-py27_0 ...
installing: anaconda-navigator-1.9.6-py27_0 ...
installing: anaconda-project-0.8.2-py27_0 ...
installing: jupyterlab_launcher-0.11.2-py27h28b3542_0 ...
installing: numpydoc-0.8.0-py27_0 ...
installing: widgetsnbextension-3.4.2-py27_0 ...
installing: ipywidgets-7.4.2-py27_0 ...
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installing: _ipyw_jlab_nb_ext_conf-0.1.0-py27_0 ...
installing: jupyter-1.0.0-py27_7 ...
installing: anaconda-2018.12-py27_0 ...
installing: conda-4.5.12-py27_0 ...
installing: conda-build-3.17.6-py27_0 ...
installation finished.
Do you wish the installer to initialize Anaconda2
in your /root/.bashrc ? [yes|no]
[no] >>> yes
Initializing Anaconda2 in /root/.bashrc
A backup will be made to: /root/.bashrc-anaconda2.bak
For this change to become active, you have to open a new terminal.
Thank you for installing Anaconda2!
[root@xd07dbm01 mnt]#

Reference