adamh

<p>External files provides a shortcode <em>[external]</em> which can be used to insert the contents of a file or url into the current post or page. The plugin will automatically format the text based on the extension (for files) or mime type (for urls), using Alex Gorbatchevs’ <a href="http://alexgorbatchev.com" title="More about Syntax Highlighter" rel="nofollow ugc">Syntax Highlighter</a> javascript.</p>
<p>The shortcode can accept three optional parameters:</p>
<ul>
<li><em>format</em> can be used to specify a highlighting format, rather than letting the plugin decide which format to use</li>
<li><em>start</em> specifies a line number to output from, so sections of a file/url can be shown</li>
<li><em>end</em> specifies the line to stop at</li>
</ul>
<p>See the installation page for usage examples.</p>
<p>The available formats are:</p>
<ul>
<li>AS3</li>
<li>Bash</li>
<li>Cpp</li>
<li>CSharp</li>
<li>Css</li>
<li>Delphi</li>
<li>Diff</li>
<li>Groovy</li>
<li>Java</li>
<li>JavaFX</li>
<li>JScript</li>
<li>Perl</li>
<li>Php</li>
<li>Plain</li>
<li>PowerShell</li>
<li>Python</li>
<li>Ruby</li>
<li>Scala</li>
<li>Sql</li>
<li>Vb</li>
<li>Xml</li>
</ul>
<h3>Future features</h3>
<p>Following is a list of ideas and features to add:</p>
<ul>
<li><em>BASE_PATH</em> and <em>BASE_URL</em> options that can be used in the shortcode to avoid typing the same long path/url each time</li>
<li>a list of available formats with the checkboxes to enable/disable each individually, thus avoiding having to load all of them</li>
<li>an option for changing the theme of the syntax highlighter</li>
</ul>


External Files

External files allows an author to insert the contents of an external file or url into a post, with the text automatically highlighted accordingly.

Anand Kumar

Digital Liberation

<p>If you are running a WordPress site then sooner or later you need to insert some kind of code to your website. It is most likley a web analytics code like Google Analytics or may be social media script or some CSS stylesheet or may be Custom fonts. This plugin will do all the magic. Even if you want to insert those codes in a custom post type.</p>
<p>All you have to do is adding appropriate html code.</p>
<p>Don’t forget to wrap your code with proper tags.</p>
<pre><code><script type="text/javascript">
YOUR JS CODE HERE
</script>
</code></pre>
<p>Or for CSS:</p>
<pre><code><style type="text/css">
YOUR CSS CODE HERE
</style>
</code></pre>
<h4>Why use this plugin:</h4>
<ul>
<li>To insert CSS and JavaScript codes to <code><head></code> or before <code></body></code>.</li>
<li>To insert code to <code><head></code> of any single page or post.</li>
<li>To insert code to Custom Post Type [New Feature].</li>
</ul>
<p>The plugin should be compatible with WooCommerce.</p>
<h4>What it does not offer</h4>
<ul>
<li>You can’t insert/execute PHP codes.</li>
</ul>
<p>Almost all WordPress theme do support this “Header and Footer Scripts” plugin. If the codes are not appearing in your site [ask for support] or look at your theme file if they have standard <code>wp_head</code> and <code>wp_footer</code> hooks.</p>
<h4>Important Links</h4>
<p>For furhter information you are welcomed to follow these links:</p>
<ul>
<li><strong><a href="https://github.com/anandkumar/header-and-footer-scripts/wiki" rel="nofollow ugc">Read Documentation</a></strong></li>
<li><strong><a href="https://wordpress.org/support/plugin/header-and-footer-scripts/" rel="ugc">Get Support</a></strong></li>
<li><strong><a href="https://github.com/anandkumar/header-and-footer-scripts" rel="nofollow ugc">GitHub Repository</a></strong></li>
</ul>


Header and Footer Scripts

good

Como es posible que al desinstalar el plugin, si no has borrado el script te deje el código ahi metido. Y luego a averiguar de donde vienen los errores. 

Al desinstalar te deja el código

Header and Footer Scripts plugin allows you to add scripts to WordPress site's  and just before closing  tag.

External Files vs Header and Footer Scripts