HP OpenVMS System Manager's Manual, Volume 1:...

Using Files and Directories

Controlling Access to ODS-5 Volumes

Getting File Information

Using DCL Commands with Files  

Operation	DCL Command
Retrieve disk and magnetic tape file information, such as device and protection characteristics, and display this information on your terminal screen	SHOW commands listed in DCL Commands to Display Ownership and Protection
Modify disk file characteristics, such as protection or UIC information	SET commands listed in DCL Commands to Modify File Protection Characteristics
Display the contents of a directory	DIRECTORY
Display the contents of a file	TYPE
Copy files to and from disk and magnetic tape volumes	COPY

Most DCL commands require file-structured devices. (The HP OpenVMS DCL Dictionary lists commands that do not require file-structured devices.)

In addition to manipulating files through DCL, you can write programs to assist you in routine file-manipulation tasks. You can write these programs in any of the languages supported by the operating system.

To manipulate individual records within files (that is, to access files at the record level), write programs that include OpenVMS Record Management Services (RMS) facilities. Refer to the OpenVMS Record Management Services Reference Manual for examples of RMS facilities used to manipulate files at the record level.

Controlling Access to ODS-5 Volumes

Getting File Information