Get ARN of S3 Bucket with aws cli

aws articles spell out the arn format but never say go here to see it. Highlighting my s3 bucket and seeing that Copy Bucket ARN kept me sane for a few more hours.

You can also select your S3 bucket ARN by selecting it using the tick mark at the s3 management console, which will pop up a Side bar. where there is a provision to copy your S3 bucket ARN.S3 management console with bucket ARN

It's always arn:PARTITION:s3:::NAME-OF-YOUR-BUCKET. If you know the name of the bucket and in which partition it's located, you know the ARN. No need to 'get' it from anywhere.

The PARTITION will be aws, aws-us-gov, or aws-cndepending on whether you're in general AWS, GovCloud, or China resepectively.