Technical Capabilities
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CLI$ - OpenVMS Command Interface

Overview

VX/CLI$ provides a call-compatible implementation of the VMS / OpenVMS Command Line Interpreter (CLI$) API for Linux and Windows. It ensures that command procedures and interactive command processing work seamlessly on non-VMS environments.

Key Features

• Fully compatible with VMS / OpenVMS CLI$ APIs.

• Supports command parsing, value retrieval, dispatching, and presence checking.

• Allows seamless migration of VMS / OpenVMS applications utilizing CLI$ routines.

• Integrates with VX/RT to provide comprehensive OpenVMS behavior on Linux & Windows.

• Preserves existing command workflows without requiring major script modifications.

VX/CLI$ Callable Routines

CLI$ API Function
CLI$DCL_PARSEParse DCL command line
CLI$GET_VALUERetrieve CLI command value
CLI$DISPATCHExecutes a command line command
CLI$PRESENTCheck if a CLI value exists

Why Use VX/CLI$?

Ensures full compatibility with OpenVMS CLI command procedures.

Supports command execution and parsing just like on OpenVMS.

Enables direct porting of OpenVMS scripts and applications that rely on CLI$.

Seamlessly integrates into the VX/RT ecosystem for full OpenVMS compatibility on Linux & Windows.

VX/CLI$ ensures that OpenVMS applications and command scripts requiring CLI$ services can be migrated without major modifications, preserving productivity and minimizing development costs.

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