console

Introduction

This document contains frequently used command and the corresponding used cases for package management software Conda. For simplification, all the variables are written in parenthesis, e.g. (package), (version). The optional parameters are written in sqaure brackets, e.g. [—versions], [—mixed]

 

Table of Content

• Environment Setting
• Channels
• Package Explorer
• Package Installation
• Upgrade Installed Package
• Export and Import

 

Environment Setting

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Install Conda package manager (on Linux)

wget https://repo.anaconda.com/archive/Anaconda3-(year).(month)-Linux-x86_64.sh
sh Anaconda3-(year).(month)-Linux-x86_64.sh

Update Conda package manager

conda update conda

Show Conda environments

conda info --envs

Create Conda environment

conda create -n (name) [package A][, package B...]

Switch Conda environment

conda activate (environment)

Return to Conda base environment

conda activate base

Remove Conda environment

conda remove --all -n (environment)

 

Channels

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Show all channels Conda has tracked

• use --env to show only activated environment

conda config [--env] --get channels channel_priority

Disable channel priorities

• the packages will be installed with the newest version in any listed channel
• use --env to set only activated environment

conda config [--env] --set channel_priority flexible

Enable channel priorities

• use --env to set only activated environment

conda config [--env] --set channel_priority strict

Track new channel with the highest priority

• use --env to set only activated environment

conda config [--env] --prepend channels (channel.url)

Track new channel with the lowest priority

• use --env to set only activated environment

conda config [--env] --append channels (channel.url)

Removed tracked channel

• use --env to set only activated environment

conda config [--env] --remove channels (channel)

 

Package Explorer

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Show installed packages

conda list -n (environment)

Show outdated packages

conda search --outdated

Search available packages in tracked channels

conda search (package/regex) 

 

Package Installation

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Install specific package in the activated environment

conda install (package)[=(version)]

Reinstall specific package in the activated environment

conda install [--force-reinstall] (package)

Uninstall specific package in the activated environment

• use -n to uninstall the pacakge only in given environment

conda remove [-n (environment)] (package)

 

Upgrade Installed Package

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Upgrade specific package in the activated environment

• use -n to update the pacakge only in given environment

conda update [-n (environment)] [package]

Upgrade all packages except for pinned packages

• use -n to update the pacakge only in given environment

conda update [-n (environment)] --all

Edit pinned packages

# console
vim $conda-root/conda-meta/pinned

# vim 
[package A==version]
[package B==version]
...

 

Export and Import

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Export packages

• use -n to export the pacakges in given environment

conda list [-n (environment)] --export [> packages.txt]

Import packages

conda install --file (packages.txt)

Create environment with given packages

conda create -n (name) --file (packages.txt)