$ conda activate abc
> usage: conda [-h] [-v] [--no-plugins] [-V] COMMAND ...
conda: error: argument COMMAND: invalid choice: 'activate' (choose from 'clean', 'compare', 'config', 'create', 'info', 'init', 'install', 'list', 'notices', 'package', 'remove', 'uninstall', 'rename', 'run', 'search', 'update', 'upgrade', 'content-trust', 'doctor', 'repoquery', 'env')

1. 1차원적인 해결

   터미널에 source ~/bin/miniconda3/etc/profile.d/conda.sh 입력

2. 근본적인 해결

   → conda init하고 터미널 껏다키기 (bash PATH error)

Reference

https://dsaint31.tistory.com/238