•Perl Cookbook, Second Edition, by Tom Christiansen and Nathan Torkington

•Perl in A Nutshell: A Desktop Quick Reference , by Ellen Siever, et al.

Typographic Conventions

This document uses the following typographical conventions:

%, $, or #

A percent sign represents the C shell system prompt. A dollar sign represents

 

the system prompt for the ,Korn, POSIX, and Bourne shells. A number sign

 

represents the superuser prompt.

audit(5)

A manpage. The manpage name is audit, and it is located in Section 5.

Command

A command name or qualified command phrase.

Computer output

Text displayed by the computer.

Ctrl+x

A key sequence. A sequence such as Ctrl+x indicates that you must hold

 

down the key labeled Ctrl while you press another key or mouse button.

ENVIRONMENT VARIABLE

The name of an environment variable, for example, PATH.

ERROR NAME

The name of an error, usually returned in the errno variable.

Key

The name of a keyboard key. Return and Enter both refer to the same

 

key.

Term

The defined use of an important word or phrase.

User input

Commands and other text that you type.

Variable

The name of a placeholder in a command, function, or other syntax display

 

that you replace with an actual value.

[ ]

The contents are optional in syntax. If the contents are a list separated by

 

, you can choose one of the items.

{ }

The contents are required in syntax. If the contents are a list separated by

 

, you must choose one of the items.

...

The preceding element can be repeated an arbitrary number of times.

Separates items in a list of choices.

WARNING

A warning calls attention to important information that if not understood or

 

followed will result in personal injury or nonrecoverable system problems.

CAUTION

A caution calls attention to important information that if not understood or

 

followed will result in data loss, data corruption, or damage to hardware

 

or software.

IMPORTANT

This alert provides essential information to explain a concept or to complete

 

a task

NOTE

A note contains additional information to emphasize or supplement important

 

points of the main text.

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HP welcomes your comments on this document. Please provide your comments and suggestions at the following URL:

http://docs.hp.com/en/feedback.html

18 About This Document