s3 commands (mb, cp, ls, sync, rm, rb)
Also written: aws s3 mb, aws s3 sync, aws s3 cp, rb --force
CLI commands that work like file commands. `mb` makes a bucket, `cp` copies a file, `ls` lists, `sync` copies only new or changed files, `rm` deletes (add `--recursive` for a prefix) and `rb --force` empties and removes a bucket.