ascp4: Transferring from the Command Line with Ascp 4

Ascp 4 is a command-line FASP file transfer program that is similar to Ascp, but has different strengths and capabilities.

Introduction to Ascp 4
Ascp 4 is optimized for sending extremely large sets of files (thousands and more small files in a single session).
Ascp 4 Command Reference
Supported environment variables, the general syntax, and command options for ascp4 are described in the following sections. ascp4 exits with a 0 on success or a 1 on error. The error code is logged in the ascp4 log file.
Ascp 4 Transfers with Object Storage
Files that are transferred with object storage are sent in chunks through the Aspera Trapd service. By default, ascp4 uses 64 KB chunks and Trapd uses 1 MB chunks; this mismatch in chunk size can cause ascp4 transfers to fail.
Ascp 4 Examples
Built-in I/O Provider
Input/Output provider are library modules that abstract I/O scheme in Ascp 4 architecture. Ascp 4 has the following built-in I/O provider: