In this case, a robot is nothing like Gort from the movie “The Day the Earth Stood Still” or any other humanoid robot from science fiction. Nor is this Robot the one-armed automated welder from a real-world automotive assembly line. This Robot is a program that controls another program. You might want this for automated testing or to capture application logic from an application for which you don’t have the source, and the application’s author lacked the kindness or foresight to provide an API for its capabilities.
This article explains the basics of OpenVMS file structures, from a Caché prospective, and what you need to know to read and write any OpenVMS file with Caché, even the files with difficult file structures.
On UNIX and Windows all files are just a stream of octets (eight-bit bytes). Assigning meaning to those octets is done entirely by convention. Those conventions are rather simple, even if slightly different on UNIX and Windows.
What is a core file? and When are they useful?
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The information in this document is current as versions of InterSystems products released through 2024-06-06. This update date covers errors in that discovered up to 2024-08-12, but not changes present in new versions of InterSystems products. Nevertheless, the details for existing products are not subject to frequent change. The WRC can supply you with a .PDF version of this article suitable for printing on either US 8½″ × 11″ or A4 210 mm × 297 mm paper. |
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