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Conda Common Commands Quick Reference

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1. Installation

Please refer to the official docs.

After installing it, we can set mirrors which facilitate download speed in China. It’s recommended to add some mirror configs (Run in command line):

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conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/ 
conda config --set show_channel_urls yes

2. Common commands

2.1 Create env

Create an environment with <env_name> and python with 3.9. 

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conda create -n <env_name> python=3.9

2.2 Activate env

Activate / Deactivate the environment <env_name>.

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# activate
conda activate <env_name>
# deactivate
conda deactivate <env_name>

2.3 Remove env

Remove the environment <env_name>.

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conda remove -n <env_name> --all

2.4 Clone env

Clone an existing environment, to a new one. So you don’t need to install package one by one. This command is a variant of conda create.

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conda create -n <new_name> --clone <old_name>

2.5 Install packages

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# with conda
conda install <packages>
# with pip
pip install <packages>
# with pip and mirrors
pip install <packages> -i https://pypi.tuna.tsinghua.edu.cn/simple

2.6 Update packages

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conda update <packages>

To update all packages, use:

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conda update --all

2.7 List packages in env

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conda list

2.8 List all envs

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conda info --envs

2.9 Clean caches

The downloaded caches occupies the storage data. We may clean them by the following commands:

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conda clean --all

2.10 Export / Import env configs

Export the current environment configs to a yaml file, then we can follow the yaml file to create another environment.

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# change to the desired env
conda activate <env_name>
# export 
conda env export > environment.yml

# import and create
conda env create -f environment.yml
# Then, you'll have a full environment like in environment.yml