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In Object Storage, you work with files and folders called objects and place them in containers called buckets. This guide will help you manage objects in buckets.

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Prerequisites

To manage buckets, you need to install and configure AWS CLI. It provides simple commands for object management, like aws s3 cp to move objects between a bucket and a local computer and aws s3 rm to delete them. For more details on installing and configuring, see How to get started with Object Storage: Create your first bucket and the guide on the AWS CLI.

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Object naming requirements

Each Object Storage object has a key — object ID in a string format. This key can contain prefixes — they act similar to directories, organizing objects into groups. To avoid issues with your objects, follow these requirements:
  • Object keys can be up to 1024 bytes long, case sensitive.
  • Use UTF-8 alphanumeric characters, slashes (/) and certain special characters.
For more information on character usage and which characters to avoid, see the AWS object naming guidelines.

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How to list objects

This command will show you the list of all the prefixes and all the first-level objects on your Object Storage bucket:
aws s3 ls s3://<bucket_name>/[<prefix_for_object_keys>]
You can find more information on the ls command in the AWS CLI reference.

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How to rename an object

You can rename an object in your Object Storage bucket using the following manual sequence:
  1. Copy the object in question with a new name. You can also update an object’s prefix: 
    aws s3 cp \
    s3://<bucket_name>/[<prefix_for_old_object_key>] \ # prefix and name of the object to rename 
    s3://<bucket_name>/[<prefix_for_new_object_key>]   # desired prefix and name of the object
  2. Remove the old copy of the renamed object: 
    aws s3 rm s3://<bucket_name>/[<prefix_for_old_object_key>]

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How to delete an object

You can delete one or more objects as follows:
This command will remove the object with a specified key:
aws s3 rm s3://<bucket_name>/<object_key>
You can find more information on the rm command in the AWS CLI reference. When an object is deleted from a bucket in Object Storage, it becomes immediately inaccessible and cannot be restored. The actual object data is then physically deleted from Nebius AI Cloud servers within 4 days.

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See also