You must Specify a Region Error in AWS CLI

Have you encountered the error message “You must specify a region” when running AWS CLI commands?

This error occurs when you haven’t configured a region for the AWS profile you’re using, or when you haven’t passed the –region parameter when running the command.

In this post, we’ll discuss how to solve this error and properly set a region for your AWS CLI profile.

Setting a Region for a Single Command

To specify a region for a single command, you can pass the –region parameter followed by the desired region code:

aws ec2 describe-instances --region us-east-1

Setting a Region for All AWS CLI Commands

To set a region that applies to all AWS CLI commands run by a specific profile, you can use the AWS configure set region command:

aws configure set region us-east-1 --profile amplify-user-1

This command writes the specified region to the AWS config file, which is located at ~/.aws/config on Linux and macOS, and at C:\Users\USERNAME.aws\config on Windows.

[Fixed]: ‘ts-node’ is not recognized as an internal or external command

To check which region is currently configured for a specific profile, you can run the AWS configure list command:

aws configure list --profile amplify-user-1

Keep in mind that the region must be configured for each profile individually. The AWS CLI will not fall back to the region configured in your default profile, even if it is set.

Overriding the Region for a Specific Command

While the AWS configure set region command is the optimal way to configure the region for your AWS CLI profile, you can also override the region for a specific command by passing the –region parameter.

This can be useful for one-off commands that need to be run in a different region than your default.

Conclusion on You must Specify a Region Error in AWS CLI

In summary, the “You must specify a region” error can be solved by either passing the –region parameter for a single command or by using the AWS configure set region command to set a default region for all AWS CLI commands run by a specific profile.

By properly configuring the region for your AWS CLI profile, you can avoid this error and successfully run your desired AWS commands.

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