Prerequisite

• Install Python3 and Pip3
  • See Install python3 on Mac
• Review http://docs.aws.amazon.com/cli/latest/userguide/cli-chap-getting-started.html
  • Learn about AWS Access Key ID

Install AWS CLI via pip3

    $ pip3 install --user --upgrade awscli

Make changes to path and adjust for correct bin directory for Python3

    export PATH=~/.local/bin:~/Library/Python/3.6/bin:$PATH

Configure the AWS keys

The Key ID and Key are sample here

    $ aws configure
    AWS Access Key ID [None]: AKIAIOSFODNN7EXAMPLE
    AWS Secret Access Key [None]: wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY
    Default region name [None]: us-east-1
    Default output format [None]: json

Check for these at ".aws" folder under your user home

    $ cd .aws
    $ ls
    config credentials
    $ cat config 
    [default]
    region = us-east-1
    output = json
    $ cat credentials 
    [default]
    aws_access_key_id = AKIAIOSFODNN7EXAMPLE
    aws_secret_access_key = wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY

Note: The default profile should be for lower environment or with least privilege to avoid accidents.

Create another AWS CLI user profile that uses another keys

    $ aws configure --profile  user2

Switching between user

    $ aws ec2 describe-instances
    $ aws ec2 describe-instances --profile user2

List of configured profiles

    $ cat  ~/.aws/credentials | grep "\["

Test

    $ aws s3api list-buckets --profile user2

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Note: If you like the instructions here, please refer it on your posts/documentation. Contact me if there are corrections needed.