[work direction] CONDA common command summary

1. conda Introduce

• conda Is in linux、windows and macOS Open source software running on Package management Systems and Environmental management System

• Package management and environmental management ：conda Can be installed quickly 、 Run and update packages and their dependencies ;conda Environment is a directory containing all installation packages and dependencies , Different environments are independent of each other

2. conda and anaconda/miniconda/pip The relationship between

• anaconda With pre-installed conda、python And many of the packages And scientific computing tools ,conda yes anaconda default python Package and environmental management tools ;

• miniconda Contains only conda and python And necessary dependencies , yes anaconda A lightweight alternative to

• conda It can be installed separately Do not rely on anaconda/miniconda Whether to install ,conda Focus on environment and package management

• stay ~/anaconda/envs I can see conda New virtual environment

• conda Have both pip Package management capabilities , It also has vitualenv Environmental management functions , So functionally conda It can be seen as pip and vitualenv The combination of ;

• pip install python software package , and conda Install package , This may include software written in any language

  anaconda: conda + python + third-party sw
  miniconda: conda + python
  conda: packages + virtual envirenments
  pip: python packages
  

3. conda Common commands

3.1 Version information

• View version information

  conda --version		# conda -V
  

• to update conda edition

  conda update conda
  

3.2 Environmental management

• See all environments

  conda info --env	# conda info -e
  

• Start the virtual environment

  conda activate env_name		# conda activate The default entry is conda base Based on the environment 
  

• Exit virtual environment

  conda deactivate	#  or conda deactivate env_name
  

• Creating a virtual environment , Install the software package at the same time , Version can be specified

  conda create --name virtual_env_name python=3.8 numpy scipy
  

• according to requirements.txt Creating a virtual environment

  conda create --name virtual_env_name --file requirements.txt
  

  requirements.txt give an example

  # This file may be used to create an environment using:
  # conda create --name env_name --file requirements.txt -c pytorch
  # platform: linux-64
  cudatoolkit=10.2.89
  numpy=1.19.2
  python=3.8.8
  pytorch=1.8.0
  tensorboard=2.4.1
  

• export requirements.txt file

  conda list -e > requirements.txt	#  or  --export
  

• Copy an environment

  conda create --name new_env_name --clone old_env_name 
  

• Delete an environment

  conda remove --name your_env_name --all
  

3.3 Package management

• View the installed packages in the current environment

  conda list
  

• Find the available versions of the package

  conda search beautifulsoup4
  conda search --full-name python
  

• Install package

  conda install package_name
  
  conda install -c channel_name package_name	#  Install the package from the specified library  -c for --channel
  conda install -c conda-forge bottleneck		#  install bottleneck
  

  conda If it cannot be installed, it can be used pip Carry out the installation such as pip install numpy

• Install local package

  conda install --use-local  ~/Downloads/a.tar.bz2
  

• Remove package

  conda uninstall package_name	#  Unload a package 
  conda remove package_name		# uninstall Another name for alias 
  

• Uninstall the package in the specified environment

  conda remove --name env_name package
  

• Use requirements.txt Mass installation packages

  conda install --yes --file requirements.txt
  

• Add ： Use in a specific virtual environment conda install/pip install The installed packages are only in the current environment

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Reference article ：
conda What is it? conda and pip The difference between
requirements.txt Batch processing
conda install and pip install The difference between
conda install -c
conda Brief introduction
requirements.txt Use

created by shuaixio, 2022.06.03