The following conventions are used in this manual:
A sequence such as Ctrl/xindicates that you must hold down the key labeled Ctrl while
you press another key or a pointing device button.
A sequence such as PF1Xindicates that you must first press and release the key labeled
PF1 and then press and release another key (x) or a pointing device button.
In examples, a key name in bold indicates that you press that key.
A horizontal ellipsis in examples indicates one of the following possibilities:− Additional
optional arguments in a statement have been omitted.− The preceding item or items can
be repeated one or more times.− Additional parameters, values, or other information can
A vertical ellipsis indicates the omission of items from a code example or command
format; the items are omitted because they are not important to the topic being discussed.
In command format descriptions, parentheses indicate that you must enclose choices in
parentheses if you specify more than one. In installation or upgrade examples, parentheses
indicate the possible answers to a prompt, such as: Is this correct? (Y/N) [Y]
In command format descriptions, brackets indicate optional choices. You can choose one
or more items or no items. Do not type the brackets on the command line. However, you
must include the brackets in the syntax for OpenVMS directory specifications and for a
substring specification in an assignment statement. In installation or upgrade examples,
brackets indicate the default answer to a prompt if you press Enterwithout entering a
value, as in: Is this correct? (Y/N) [Y]
In command format descriptions, vertical bars separate choices within brackets or braces.
Within brackets, the choices are optional; within braces, at least one choice is required.
Do not type the vertical bars on the command line.
In command format descriptions, braces indicate required choices; you must choose at
least one of the items listed. Do not type the braces on the command line.
Bold type represents the name of an argument, an attribute, or a reason. In command
and script examples, bold indicates user input. Bold type also represents the introduction
of a new term.
Italic type indicates important information, complete titles of manuals, or variables.
Variables include information that varies in system output (Internal error number), in
command lines (/PRODUCER=name), and in command parameters in text (where dd
represents the predefined code for the device type).
Uppercase type indicates a command, the name of a routine, the name of a file, or the
abbreviation for a system privilege.
This typeface indicates code examples, command examples, and interactive screen displays.
In text, this type also identifies website addresses, UNIX command and pathnames,
PC-based commands and folders, and certain elements of the C programming language.
A hyphen at the end of a command format description, command line, or code line
indicates that the command or statement continues on the following line.
All numbers in text are assumed to be decimal unless otherwise noted. Nondecimal
radixes—binary, octal, or hexadecimal—are explicitly indicated.
Before installing, upgrading, or using the OpenVMS operating system on your computer, be
sure you have access to the following documents. Some of the documents listed here are from