S3Express: Amazon S3 Command Line Utility

Amazon S3 command line utility for Windows. Copy, query, backup multiple files to S3 using the Windows command line.

S3Express FAQ and Knowledge Base

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Items in Known Errors with Solutions (View All On One Page)
 Error "400 - AuthorizationHeaderMalformed - The authorization header is malformed; Invalid credential date. Date is not the same as X-Amz-Date."
 Error 51 when accessing S3 buckets with periods (.) in the name
 InvalidRequest - The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256.
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