This article covers how to download S3 files using curl for both public and private buckets, along with advanced techniques for handling large files. 1. Downloading a Public S3 File
2. Downloading a Private S3 File (Recommended: Presigned URLs) download s3 file using curl
Here is a bash snippet using openssl to create the signature: Downloading data using curl - Amazon S3 This article covers how to download S3 files
Use quotes around the URL to prevent special characters ( ? , & ) from breaking the command. curl -o downloaded-file.zip "https://amazonaws.com..." Use code with caution. 3. Downloading Private Files Without CLI (AWS Signature V4) Downloading a Private S3 File (Recommended: Presigned URLs)
Use the -O (remote name) flag to save the file with its original name from the URL: curl -O https://amazonaws.com Use code with caution. Alternatively, use -o to specify a custom local filename: curl -o local_file.txt https://amazonaws.com Use code with caution.
Downloading files from Amazon S3 using curl is a common requirement for DevOps engineers, developers, and automated scripts, particularly when you need to retrieve data without installing the full AWS CLI. Because S3 files are often private, curl requires proper authentication or a temporary pre-signed URL to succeed.