How do I create a new conda environment using an existing environment's settings?

[thath]

I would like to essentially create a new environment from an old environment.

[kenodegard]

For a brand new environment:

conda create --clone OLD_ENV --name NEW_ENV

If the new environment already exists:

conda activate OLD_ENV
conda env export > old_environment.yml
conda activate NEW_ENV
conda env update --file old_environment.yml

Ref:

• Cloning an environment
• Exporting the environment.yml file
• Exporting an environment file across platforms