miniconda cheatsheet

miniconda_cheatsheet.sh

# =============================================
# MINICONDA CHEATSHEET (Python Environment & Package Management)
# =============================================
# Lightweight version of Anaconda for Python environments.
# Install: https://docs.conda.io/projects/miniconda/en/latest/
# Docs: https://conda.io/projects/conda/en/latest/commands.html

# ---------------------------------------------------------------------
# 1. INSTALLATION & SETUP
# ---------------------------------------------------------------------

# Download and install Miniconda (Linux/macOS)
wget https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh
bash Miniconda3-latest-Linux-x86_64.sh

# Initialize conda (restart shell after this)
conda init bash  # For bash shell (use `zsh` for Zsh)

# Update conda
conda update -n base -c defaults conda

# ---------------------------------------------------------------------
# 2. ENVIRONMENT MANAGEMENT
# ---------------------------------------------------------------------

# Create a new environment
conda create -n my_env python=3.10  # Replace `my_env` and version

# List all environments
conda env list

# Activate an environment
conda activate my_env

# Deactivate current environment
conda deactivate

# Clone an environment
conda create --name my_clone --clone my_env

# Remove an environment
conda remove --name my_env --all

# ---------------------------------------------------------------------
# 3. PACKAGE MANAGEMENT
# ---------------------------------------------------------------------

# Install a package
conda install numpy pandas  # From default channel

# Install from specific channel (e.g., conda-forge)
conda install -c conda-forge tensorflow

# Install with version constraints
conda install "flask>=2.0,<3.0"

# List installed packages
conda list

# Search for a package
conda search numpy

# Remove a package
conda remove numpy

# Update all packages in environment
conda update --all

# ---------------------------------------------------------------------
# 4. ENVIRONMENT EXPORT & SHARING
# ---------------------------------------------------------------------

# Export environment to YAML file
conda env export > environment.yml

# Create environment from YAML file
conda env create -f environment.yml

# Export only explicit dependencies (no pip packages)
conda env export --from-history > environment.yml

# ---------------------------------------------------------------------
# 5. CHANNELS & CONFIGURATION
# ---------------------------------------------------------------------

# Add a channel (e.g., conda-forge)
conda config --add channels conda-forge

# Set channel priority (strict avoids mixing channels)
conda config --set channel_priority strict

# Show conda configuration
conda config --show

# ---------------------------------------------------------------------
# 6. CLEANUP & MAINTENANCE
# ---------------------------------------------------------------------

# Remove unused packages and caches
conda clean --all

# List broken packages
conda verify --all

# =============================================
# TIPS:
# - Use `conda-forge` channel for latest packages.
# - Prefer `environment.yml` for reproducible environments.
# - Combine with `mamba` for faster dependency resolution (`conda install -n base -c conda-forge mamba`).
# =============================================