OpenVMS Manual

This document, the HP OpenVMS Utility Routines Manual, serves as a comprehensive programming reference for developers. It details callable routines that allow interaction with core OpenVMS system utilities. The manual covers 21 distinct utility sets, providing introductions, programming examples, and exhaustive routine descriptions for each.

Key areas covered include: * Access Control List (ACL) and File Management: Editing routines for ACLs and File Definition Language (FDL) routines for file characteristics. * System Utility Interfaces: Backup API for volume operations, CLI routines for command parsing, and Convert/Reclaim routines for file format manipulation. * Data Processing: Routines for data compression/expansion (DCX), encryption (ENCRYPT) supporting both AES and DES, and Librarian (LBR) routines for managing libraries. * Environment and Language Support: DECTPU for text processing, DECdts for portable time applications, LOGINOUT callouts, MAIL for message handling, and National Character Set (NCS) routines. * System Management and Debugging: Print Symbiont Modification (PSM) routines for customizing print symbionts, the Symbiont/Job Controller Interface (SMB), and the Traceback (TBK) facility for debugging.