Select the version you want to install:
https://repo.anaconda.com/archive/
Download the .sh script:
curl -0 https://repo.anaconda.com/archive/Anaconda3-2020.02-Linux-x86_64.sh
Execute the script:
bash Anaconda3-2019.03-Linux-x86_64.sh
Follow the instructions on screen and say yes to:
Do you wish the installer to prepend the Anaconda3 install location to PATH in your ${HOME}/.bashrc ? [yes | no] [no] >>> yes
Reload shell or open a new terminal and run:
conda list