Is it installed already? You will need Python and pip. $ python --version Python 2.7.10 $ which aws /Users/michael/Library/Python/2.7/bin/aws $ aws --version aws-cli/1.14.9 Python/2.7.10 Darwin/16.7.0 botocore/1.8.13 Need to update? $ pip install awscli --upgrade --user
Follow the official AWS installation instructions to install the AWS CLI for your platform.