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<p>
Next: <a href="_0040code.html" accesskey="n" rel="next"><code>@code</code></a>, Up: <a href="Indicating.html" accesskey="u" rel="up">Indicating</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Command-and-Variable-Index.html" title="Index" rel="index">Index</a>]</p>
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<span id="Highlighting-Commands-are-Useful"></span><h4 class="subsection">7.1.1 Highlighting Commands are Useful</h4>
<p>The commands serve a variety of purposes:
</p>
<dl compact="compact">
<dt><code>@code{<var>sample-code</var>}</code></dt>
<dd><p>Indicate text that is a literal example of a piece of a program.
See <a href="_0040code.html"><code>@code</code></a>.
</p>
</dd>
<dt><code>@kbd{<var>keyboard-characters</var>}</code></dt>
<dd><p>Indicate keyboard input. See <a href="_0040kbd.html"><code>@kbd</code></a>.
</p>
</dd>
<dt><code>@key{<var>key-name</var>}</code></dt>
<dd><p>Indicate the conventional name for a key on a keyboard.
See <a href="_0040key.html"><code>@key</code></a>.
</p>
</dd>
<dt><code>@samp{<var>text</var>}</code></dt>
<dd><p>Indicate text that is a literal example of a sequence of characters.
See <a href="_0040samp.html"><code>@samp</code></a>.
</p>
</dd>
<dt><code>@verb{<var>text</var>}</code></dt>
<dd><p>Write a verbatim sequence of characters.
See <a href="_0040verb.html"><code>@verb</code></a>.
</p>
</dd>
<dt><code>@var{<var>metasyntactic-variable</var>}</code></dt>
<dd><p>Indicate a metasyntactic variable. See <a href="_0040var.html"><code>@var</code></a>.
</p>
</dd>
<dt><code>@env{<var>environment-variable</var>}</code></dt>
<dd><p>Indicate an environment variable. See <a href="_0040env.html"><code>@env</code></a>.
</p>
</dd>
<dt><code>@file{<var>file-name</var>}</code></dt>
<dd><p>Indicate the name of a file. See <a href="_0040file.html"><code>@file</code></a>.
</p>
</dd>
<dt><code>@command{<var>command-name</var>}</code></dt>
<dd><p>Indicate the name of a command.
See <a href="_0040command.html"><code>@command</code></a>.
</p>
</dd>
<dt><code>@option{<var>option</var>}</code></dt>
<dd><p>Indicate a command-line option.
See <a href="_0040option.html"><code>@option</code></a>.
</p>
</dd>
<dt><code>@dfn{<var>term</var>}</code></dt>
<dd><p>Indicate the introductory or defining use of a term.
See <a href="_0040dfn.html"><code>@dfn</code></a>.
</p>
</dd>
<dt><code>@cite{<var>reference</var>}</code></dt>
<dd><p>Indicate the name of a book. See <a href="_0040cite.html"><code>@cite</code></a>.
</p>
</dd>
<dt><code>@abbr{<var>abbreviation</var>}</code></dt>
<dd><p>Indicate an abbreviation, such as ‘Comput.’.
</p>
</dd>
<dt><code>@acronym{<var>acronym</var>}</code></dt>
<dd><p>Indicate an acronym. See <a href="_0040acronym.html"><code>@acronym</code></a>.
</p>
</dd>
<dt><code>@indicateurl{<var>uniform-resource-locator</var>}</code></dt>
<dd><p>Indicate an example (that is, nonfunctional) uniform resource locator.
See <a href="_0040indicateurl.html"><code>@indicateurl</code></a>. (Use <code>@url</code> (see <a href="_0040url.html"><code>@url</code></a>) for
live urls.)
</p>
</dd>
<dt><code>@email{<var>email-address</var>[, <var>displayed-text</var>]}</code></dt>
<dd><p>Indicate an electronic mail address. See <a href="_0040email.html"><code>@email</code></a>.
</p>
</dd>
</dl>
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