Specifications

Manual Purpose and Structure
IX
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CONVENTIONS USED IN THIS MANUAL
The notation used to describe the format of call lines is given below:
{ } Items shown inside curly braces enclose a list from which
you must choose an item.
[ ] Items shown inside squar e brackets enclose items that ar e
optional.
| The vertical bar separates items in a list. It can be r ead as
OR.
italics Items shown in italic letters mean that you have to
substitute the item. If italic items ar e inside square
brackets, they are optional. For example:
filename
means: type the name of your file in place of the word
filename.
... An ellipsis indicates that you can r epeat the pr eceding
item zero or mor e times.
screen font Represents input examples and screen output examples.
bold font Represents a command name, an option or a complete
command line which you can enter.
For example
command [option]... filename
This line could be written in plain English as: execute the command
command with the optional options option and with the file filename.
Illustrations
The following illustrations are used in this manual:
This is a note. It gives you extra information.
This is a war ning. Read the information carefully.