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+# AWS CLI
+
+## TL;DR
+
+```shell
+# Install the CLI.
+brew install awscli
+
+# Configure a profile.
+aws configure
+aws configure --profile work
+
+# Use a specific profile for the rest of this shell session.
+export AWS_PROFILE="work"
+```
+
+## Profiles
+
+```shell
+# Initialize the default profile.
+# Not specifying a profile means to configure the default profile.
+$ aws configure
+AWS Access Key ID [None]: AKIAI44QH8DHBEXAMPLE
+AWS Secret Access Key [None]: je7MtGbClwBF/2Zp9Utk/h3yCo8nvbEXAMPLEKEY
+Default region name [None]: us-east-1
+Default output format [None]: text
+
+# Initialize a specific profile.
+$ aws configure --profile work
+AWS Access Key ID [None]: AKIAI44QH8DBEXAMPLE2
+AWS Secret Access Key [None]: je7MtGbClwBF/2Zp9Utk/h3yCo8nbEXAMPLEKEY2
+Default region name [None]: us-west-1
+Default output format [None]: json
+
+# Use a specific profile for the rest of this session.
+$ export AWS_PROFILE="work"
+```
+
+## Further readings
+
+- CLI [quickstart]
+- [Configure profiles] in the CLI
+
+[quickstart]: https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-quickstart.html
+[configure profiles]: https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-profiles.html