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What Typographic Changes and Symbols Mean
Notes, Cautions, and Warnings
! !
The following table describes the type changes and symbols used in this book.
Table P-2
Typographic Conventions
Typeface or
Symbol
Meaning
The names of commands, files,
AaBbCc123
and directories; on-screen
computer output
What you type, contrasted with
AaBbCc123
on-screen computer output
AaBbCc123
Command-line placeholder:
replace with a real name or
value
AaBbCc123
Book titles, new words or terms,
or words to be emphasized
Code samples are included in boxes and may display the following:
UNIX C shell prompt
%
UNIX Bourne and Korn shell
$
prompt
Superuser prompt, all shells
#
Warning – This equipment contains lethal voltage. Accidental contact can
result in serious injury or death.
Caution – Improper handling by unqualified personnel can cause serious
damage to this equipment. Unqualified personnel who tamper with this
equipment may be held liable for any resultant damage to the equipment.
Example
Edit your .login file.
Use ls -a to list all files.
system% You have mail.
system% su
Password:
To delete a file, type rm filename.
Read Chapter 6 in User's Guide.
These are called class options.
You must be root to do this.
system%
system$
system#
xi
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