2. Typographic Conventions
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## 2. Typographic Conventions

This table describes the typographic conventions used in this book.

Meaning | Examples
--- | ---
The names of commands. | Use `ls -l` to list all files.
The names of files. | Edit `.login`.
On-screen computer output. | You have mail.
What the user types, contrasted with on-screen computer output. | `%` `date +"The time is %H:%M"` The time is 09:18
Manual page references. | Use su(1) to change user identity.
User and group names. | Only `root` can do this.
Emphasis. | The user must do this.
Text that the user is expected to replace with the actual text. | To search for a keyword in the manual pages, type `man -k `keyword``
Environment variables. | `$HOME` is set to the user's home directory.

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