How to use S3 pre-signed URLs for temporary access to objects with s3cmd?

To use S3 pre-signed URLs for temporary access to objects with s3cmd, follow these steps:

1. Make sure you have s3cmd installed on your machine. If not, you can install it by following the instructions provided by the s3cmd documentation.

2. Configure s3cmd with your AWS credentials. Run the following command to start the configuration process:

   s3cmd --configure

   Follow the prompts and provide your AWS Access Key ID and Secret Access Key when prompted. You can also specify your preferred region and default output format.

3. Generate a pre-signed URL for the object you want to access. Run the following command:

   s3cmd signurl s3://bucket-name/object-key expiration-time

   Replace bucket-name with the name of your S3 bucket and object-key with the key of the object you want to access. Replace expiration-time with the time in seconds until the URL should expire. For example, you can specify 3600 for an expiration time of one hour.

   This command will generate a pre-signed URL that you can use to access the object temporarily.

4. Use the generated pre-signed URL to access the object. You can use a web browser or any HTTP client to access the object by simply pasting the URL into the address bar or providing it as the request URL.

   Note that the pre-signed URL provides temporary access to the object until the expiration time is reached. After that, the URL will no longer be valid.

Remember to handle the pre-signed URL securely and avoid sharing it with unauthorized users, as it provides temporary access to your S3 objects.