What DocBook SGML Markup Means

This book is written in the Structured Generalized Markup Language (SGML) using the DocBook Document Type Definition (DTD). The following table describes the DocBook markup used for various semantic elements.

Table 1 DocBook SGML Markup

`Markup Appearance`	`Semantic Element(s)`	`Example`
AaBbCc123	The names of commands.	Use the ls command to list files.
`AaBbCc123`	The names of command options.	Use ls `-a` to list all files.
`AaBbCc123`	Command-line placeholder: replace with a real name or value.	To delete a file, type rm `filename`.
`AaBbCc123`	The names of files and directories.	Edit your `.login` file.
AaBbCc123	Book titles, new words or terms, or words to be emphasized.	Read Chapter 6 in User's Guide. These are called class options. You must be root to do this.

What DocBook SGML Markup Means

Technical documentation

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