Added support for the new S3 storage class Standard - Infrequent Access (Standard - IA). The new Standard - Infrequent Access storage class offers the high durability, low latency, and high throughput of Amazon S3 Standard, but with lower prices, $0.01 per GB retrieval fee, and a 30-day storage minimum. This combination of low cost and high performance makes Standard - IA ideal for long-term file storage, backups, and disaster recovery.
Added new command pwd to show current local working directory.