About This Manual

This manual contains release notes for the Compaq Tru64^TM UNIX Version 5.1A operating system software.

This manual also describes significant new and changed features in this version of the Tru64 UNIX operating system and lists features and interfaces scheduled for retirement in future releases.

Audience

These release notes are for the person who installs the product and for anyone using the product following installation.

Organization

This manual is organized as follows:

Related Documents

You will find it helpful to have the following documentation available during the installation of this product:

• The hardware documentation for your system

• The Installation Guide

• The Installation Guide -- Advanced Topics

• The online or hardcopy reference pages

• The HTML files provided on the Software Documentation CD-ROM, especially New and Changed Features from Previous Releases

You can also view the Tru64 UNIX Version 5.1A Technical Update for any additional information not included in these notes. You can access the Technical Update from the following URL:

http://www.tru64unix.compaq.com/faqs/publications/pub_page/update_list.html

Reader's Comments

Compaq welcomes any comments and suggestions you have on this and other Tru64 UNIX manuals.

You can send your comments in the following ways:

• Fax: 603-884-0120 Attn: UBPG Publications, ZKO3-3/Y32

• Internet electronic mail: readers_comment@zk3.dec.com

  A Reader's Comment form is located on your system in the following location:

  /usr/doc/readers_comment.txt

Please include the following information along with your comments:

• The full title of the manual and the order number. (The order number appears on the title page of printed and PDF versions of a manual.)

• The section numbers and page numbers of the information on which you are commenting.

• The version of Tru64 UNIX that you are using.

• If known, the type of processor that is running the Tru64 UNIX software.

The Tru64 UNIX Publications group cannot respond to system problems or technical support inquiries. Please address technical questions to your local system vendor or to the appropriate Compaq technical support office. Information provided with the software media explains how to send problem reports to Compaq.

Conventions

The following conventions are used in this manual:

%
$

A percent sign represents the C shell system prompt. A dollar sign represents the system prompt for the Bourne, Korn, and POSIX shells.

#

A number sign represents the superuser prompt.

% cat

Boldface type in interactive examples indicates typed user input.

file

Italic (slanted) type indicates variable values, placeholders, and function argument names.

[ | ]
{ | }

In syntax definitions, brackets indicate items that are optional and braces indicate items that are required. Vertical bars separating items inside brackets or braces indicate that you choose one item from among those listed.

colored text

In syntax definitions, literal elements are colored green. Variable values, placeholders, and function argument names are colored red. No special colored text is used outside of syntax descriptions.

. . .

In syntax definitions, a horizontal ellipsis indicates that the preceding item can be repeated one or more times.

cat(1)

A cross-reference to a reference page includes the appropriate section number in parentheses. For example, cat(1) indicates that you can find information on the cat command in Section 1 of the reference pages.

[Ctrl/x]

This symbol indicates that you hold down the first named key while pressing the key or mouse button that follows the slash. In examples, this key combination is enclosed in a box (for example, [Ctrl/C] ).