<FILENAME filename="index.html"><html><head><title>The KHelpCenter</title><link rel="stylesheet" type="text/css" href="help:/kdoctools5-common/kde-default.css"><link rel="stylesheet" type="text/css" href="help:/kdoctools5-common/kde-docs.css"><link rel="stylesheet" type="text/css" href="help:/kdoctools5-common/kde-localised.css"><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"><meta name="description" content="KDE is an international technology team that creates Free Software for desktop and portable computing. Among KDE's products are a modern desktop system for Linux and UNIX platforms, comprehensive office productivity and groupware suites and hundreds of software titles in many categories including Internet and web applications, multimedia, entertainment, educational, graphics and software development."><meta name="keywords" content="KDE, kdebase, khelpcenter, kdehelp, help, help center, KDE help center"><link rel="home" href="index.html" title="The KHelpCenter"><link rel="next" href="help-system-handbook.html" title="Chapter 1. KDE Help System Handbook"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="GENERATOR" content="KDE XSL Stylesheet V1.14 using libxslt"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div id="content"><div id="header"><div id="header_content"><div id="header_left"><div id="header_right"><img src="help:/kdoctools5-common/top-kde.jpg" width="36" height="34"> The <span class="application">KHelpCenter</span></div></div></div></div><div class="navCenter"><table class="navigation"><tr><td class="prevCell"></td><td class="upCell"> </td><td class="nextCell"><a accesskey="n" href="help-system-handbook.html">Next</a></td></tr></table></div><div id="contentBody"><div lang="en" class="book"><div class="titlepage"><div><div><h1 class="title"><a name="khelpcenter"></a>The <span class="application">KHelpCenter</span></h1></div><div><div class="authorgroup"><h3 class="corpauthor">The <span class="orgname">KDE<br></span> Team</h3></div></div><div>Revision <span class="releaseinfo">Applications 16.04 (<span class="date">2016-04-17</span>)</span></div><div><p><a href="help:/kdoctools5-common/fdl-notice.html">Legal Notice</a></p></div><div><div><div class="abstract"><p> <span class="orgname">KDE</span> is an international technology team that creates <a class="ulink" href="https://www.gnu.org/philosophy/free-sw.html" target="_top">Free Software</a> for desktop and portable computing. Among <span class="orgname">KDE</span>'s products are a modern desktop system for <span class="trademark">Linux</span>® and <span class="trademark">UNIX</span>® platforms, comprehensive office productivity and groupware suites and hundreds of software titles in many categories including Internet and web applications, multimedia, entertainment, educational, graphics and software development. </p></div></div></div></div><hr></div><div class="toc"><p><b>Table of Contents</b></p><dl class="toc"><dt><span class="chapter"><a href="help-system-handbook.html">1. <span class="orgname">KDE</span> Help System Handbook</a></span></dt><dd><dl><dt><span class="sect1"><a href="help-system-handbook.html#help-introduction">Help System</a></span></dt><dt><span class="sect1"><a href="invoking-help.html">Invoking Help</a></span></dt><dt><span class="sect1"><a href="interface-basics.html">The <span class="application">KHelpCenter</span> interface</a></span></dt><dd><dl><dt><span class="sect2"><a href="interface-basics.html#contents-pane">The Contents Pane</a></span></dt><dt><span class="sect2"><a href="interface-basics.html#man-and-info">The <span class="application">Man</span> and <span class="application">Info</span> sections</a></span></dt><dt><span class="sect2"><a href="interface-basics.html#kde-glossary">The <span class="orgname">KDE</span> glossary</a></span></dt><dt><span class="sect2"><a href="interface-basics.html#menu-and-toolbar-ref">The menus and toolbar</a></span></dt></dl></dd><dt><span class="sect1"><a href="credits.html">Credits and License</a></span></dt></dl></dd></dl></div><FILENAME filename="help-system-handbook.html"><html><head><title>Chapter 1. KDE Help System Handbook</title><link rel="stylesheet" type="text/css" href="help:/kdoctools5-common/kde-default.css"><link rel="stylesheet" type="text/css" href="help:/kdoctools5-common/kde-docs.css"><link rel="stylesheet" type="text/css" href="help:/kdoctools5-common/kde-localised.css"><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"><meta name="keywords" content="KDE, kdebase, khelpcenter, kdehelp, help, help center, KDE help center"><link rel="home" href="index.html" title="The KHelpCenter"><link rel="up" href="index.html" title="The KHelpCenter"><link rel="prev" href="index.html" title="The KHelpCenter"><link rel="next" href="invoking-help.html" title="Invoking Help"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="GENERATOR" content="KDE XSL Stylesheet V1.14 using libxslt"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div id="content"><div id="header"><div id="header_content"><div id="header_left"><div id="header_right"><img src="help:/kdoctools5-common/top-kde.jpg" width="36" height="34"> <span class="orgname">KDE</span> Help System Handbook</div></div></div></div><div class="navCenter"><table class="navigation"><tr><td class="prevCell"><a accesskey="p" href="index.html">Prev</a></td><td class="upCell"> </td><td class="nextCell"><a accesskey="n" href="invoking-help.html">Next</a></td></tr></table></div><div id="contentBody"><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="help-system-handbook"></a>Chapter 1. <span class="orgname">KDE</span> Help System Handbook</h1></div></div></div><a name="help"></a><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="help-introduction"></a>Help System</h2></div></div></div><p>The help system is designed to make accessing the common <span class="trademark">UNIX</span>® help systems (<span class="application">man</span> and <span class="application">info</span>) simple, as well as the user documentation of applications including <span class="productname"><span class="orgname">KDE</span> Plasma Workspaces</span> from the <span class="orgname">KDE</span> community (<acronym class="acronym">XML</acronym>). </p><p> All applications (including <span class="productname"><span class="orgname">KDE</span> Plasma Workspaces</span>) from the <span class="orgname">KDE</span> community come fully documented, thanks to the efforts of the Documentation team. If you are interested in helping with the documentation efforts, join the <a class="ulink" href="https://mail.kde.org/mailman/listinfo/kde-doc-english" target="_top">mailing list</a> and write to the team at <code class="email">(kde-doc-english AT kde.org)</code>. No experience is required, just enthusiasm and patience. </p><p> If you would like to help translating <span class="orgname">KDE</span> documentation to your native language, review the information, including coordinators for each language team, on the <a class="ulink" href="https://l10n.kde.org/" target="_top">Localization web site</a>. </p></div><FILENAME filename="invoking-help.html"><html><head><title>Invoking Help</title><link rel="stylesheet" type="text/css" href="help:/kdoctools5-common/kde-default.css"><link rel="stylesheet" type="text/css" href="help:/kdoctools5-common/kde-docs.css"><link rel="stylesheet" type="text/css" href="help:/kdoctools5-common/kde-localised.css"><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"><meta name="keywords" content="KDE, kdebase, khelpcenter, kdehelp, help, help center, KDE help center"><link rel="home" href="index.html" title="The KHelpCenter"><link rel="up" href="help-system-handbook.html" title="Chapter 1. KDE Help System Handbook"><link rel="prev" href="help-system-handbook.html" title="Chapter 1. KDE Help System Handbook"><link rel="next" href="interface-basics.html" title="The KHelpCenter interface"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="GENERATOR" content="KDE XSL Stylesheet V1.14 using libxslt"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div id="content"><div id="header"><div id="header_content"><div id="header_left"><div id="header_right"><img src="help:/kdoctools5-common/top-kde.jpg" width="36" height="34"> Invoking Help</div></div></div></div><div class="navCenter"><table class="navigation"><tr><td class="prevCell"><a accesskey="p" href="help-system-handbook.html">Prev</a></td><td class="upCell"><span class="orgname">KDE</span> Help System Handbook</td><td class="nextCell"><a accesskey="n" href="interface-basics.html">Next</a></td></tr></table></div><div id="contentBody"><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="invoking-help"></a>Invoking Help</h2></div></div></div><p> <span class="application">KHelpCenter</span> can be called in several ways: </p><div class="variablelist"><dl class="variablelist"><dt><span class="term">From the <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Help</span></span> menu</span></dt><dd><p> The most common will probably be from within an application. Choose <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Help</span></span> → <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem"><span class="replaceable"><em class="replaceable"><code>Application</code></em></span> Handbook</span></span> (<span class="shortcut"><strong><span class="keycap"><strong>F1</strong></span></strong></span>) to open that application's handbook. </p></dd><dt><span class="term">From the Application Launcher</span></dt><dd><p> Choose the big <span class="guiicon">K</span> in your panel, and select <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">Help</span></span> from the <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">Applications</span></span> tab or type <strong class="userinput"><code>help</code></strong> followed by selecting <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">Help</span></span>. This will open <span class="application">KHelpCenter</span> with the default start page. </p></dd><dt><span class="term">From the command line</span></dt><dd><p> <span class="application">KHelpCenter</span> may be started using a <acronym class="acronym">URL</acronym> to display a file. <acronym class="acronym">URL</acronym>s have been added for <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="command"><span class="command"><strong>info</strong></span></span> and <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="command"><span class="command"><strong>man</strong></span></span> pages also. You can use them as follows: </p><div class="variablelist"><dl class="variablelist"><dt><span class="term">An application help file</span></dt><dd><p> <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="command"><span class="command"><strong>khelpcenter</strong></span></span> <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="option"><code class="option">help:/<span class="replaceable"><em class="replaceable"><code>kwrite</code></em></span></code></span> </p><p> Opens the <span class="application">KWrite</span> help file, at the contents page. </p></dd><dt><span class="term">A local <acronym class="acronym">URL</acronym></span></dt><dd><p> <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="command"><span class="command"><strong>khelpcenter</strong></span></span> <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="option"><code class="option">file:/<span class="replaceable"><em class="replaceable"><code>usr/local/src/qt/html/index.html</code></em></span></code></span> </p></dd><dt><span class="term">A Man page</span></dt><dd><p> <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="command"><span class="command"><strong>khelpcenter</strong></span></span> <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="option"><code class="option">man:/<span class="replaceable"><em class="replaceable"><code>strcpy</code></em></span></code></span> </p></dd><dt><span class="term">An Info page</span></dt><dd><p> <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="command"><span class="command"><strong>khelpcenter</strong></span></span> <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="option"><code class="option">info:/<span class="replaceable"><em class="replaceable"><code>gcc</code></em></span></code></span> </p></dd></dl></div><p> Invoking <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="command"><span class="command"><strong>khelpcenter</strong></span></span> with no parameters opens the default start page. </p></dd></dl></div></div></div><div id="footer"><div class="navCenter"><table class="navigation"><tr><td class="prevCell"><a accesskey="p" href="help-system-handbook.html">Prev</a></td><td class="upCell"><a accesskey="h" href="index.html">Contents</a></td><td class="nextCell"><a accesskey="n" href="interface-basics.html">Next</a></td></tr><tr><td class="prevCell"><span class="orgname">KDE</span> Help System Handbook </td><td class="upCell"><span class="orgname">KDE</span> Help System Handbook</td><td class="nextCell"> The <span class="application">KHelpCenter</span> interface</td></tr></table></div><div id="footer_text">Would you like to make a comment or contribute an update to this page?<br>Send feedback to the <a href="mailto:kde-doc-english@kde.org" class="footer_email">KDE Docs Team</a></div></div></div></body></html></FILENAME><FILENAME filename="interface-basics.html"><html><head><title>The KHelpCenter interface</title><link rel="stylesheet" type="text/css" href="help:/kdoctools5-common/kde-default.css"><link rel="stylesheet" type="text/css" href="help:/kdoctools5-common/kde-docs.css"><link rel="stylesheet" type="text/css" href="help:/kdoctools5-common/kde-localised.css"><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"><meta name="keywords" content="KDE, kdebase, khelpcenter, kdehelp, help, help center, KDE help center"><link rel="home" href="index.html" title="The KHelpCenter"><link rel="up" href="help-system-handbook.html" title="Chapter 1. KDE Help System Handbook"><link rel="prev" href="invoking-help.html" title="Invoking Help"><link rel="next" href="credits.html" title="Credits and License"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="GENERATOR" content="KDE XSL Stylesheet V1.14 using libxslt"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div id="content"><div id="header"><div id="header_content"><div id="header_left"><div id="header_right"><img src="help:/kdoctools5-common/top-kde.jpg" width="36" height="34"> The <span class="application">KHelpCenter</span> interface</div></div></div></div><div class="navCenter"><table class="navigation"><tr><td class="prevCell"><a accesskey="p" href="invoking-help.html">Prev</a></td><td class="upCell"><span class="orgname">KDE</span> Help System Handbook</td><td class="nextCell"><a accesskey="n" href="credits.html">Next</a></td></tr></table></div><div id="contentBody"><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="interface-basics"></a>The <span class="application">KHelpCenter</span> interface</h2></div></div></div><p> The <span class="application">KHelpCenter</span> interface consists of two panes of information. </p><p> The toolbar and menus are explained further in <a class="xref" href="interface-basics.html#menu-and-toolbar-ref" title="The menus and toolbar">the section called “The menus and toolbar”</a>. </p><p> Documents contain their own navigation tools, enabling you to move either sequentially through a document, using <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Next</span></span>, <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Previous</span></span>, and <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Contents</span></span> links, or to move around in a less structured manner, using hyperlinks. </p><p> Links can take you to other parts of the same document, or to a different document, and you can use the <span class="guiicon">Back</span> (Left pointing arrow) or <span class="guiicon">Forward</span> (Right pointing arrow) icons on the toolbar to move through the documents you have viewed in this session. </p><p> The two panes display the contents of the help system, and the help files themselves, on the left and right respectively. </p><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="contents-pane"></a>The Contents Pane</h3></div></div></div><p> The contents pane in <span class="application">KHelpCenter</span> is displayed on the left hand side of the window. As you might expect, you can move the splitter bar, to make sure you can comfortably read the contents of either pane. </p><p> The contents pane is further divided into three tabs, one containing a <a class="link" href="interface-basics.html#contents-tab" title="The Contents Tab">tree view</a> showing all the help information <span class="application">KHelpCenter</span> is aware of, and the other contains the <span class="orgname">KDE</span> <a class="link" href="interface-basics.html#kde-glossary" title="The KDE glossary">glossary</a> of terms. On the third tab you can configure the <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Search Options</span></span>. </p><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="contents-tab"></a>The Contents Tab</h4></div></div></div><p> The <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Contents</span></span> tab contains the following default top level entries in the tree view: </p><div class="variablelist"><dl class="variablelist"><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Fundamentals</span></span></span></dt><dd><p>The Fundamentals introduce you to the many features of the <span class="productname"><span class="orgname">KDE</span> Plasma Workspaces</span> and <span class="productname">Applications</span> and describe many common tasks you can perform in all <span class="productname">Applications</span>. </p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Plasma Manual</span></span></span></dt><dd><p> The <span class="productname">Plasma</span> Manual is the documentation for the <span class="productname"><span class="orgname">KDE</span> Plasma Workspaces</span>. </p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Online Help</span></span></span></dt><dd><p>A page with links to online help and additional information provided by the <span class="orgname">KDE</span> community. </p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Application Manuals</span></span></span></dt><dd><p> Native <span class="orgname">KDE</span> application documentation. All <span class="orgname">KDE</span> applications have documentation in <acronym class="acronym">XML</acronym> format, which are converted to <acronym class="acronym">HTML</acronym> when you view them. This section lists all the <span class="orgname">KDE</span> applications with a brief description and a link to the full application documentation. </p><p> The applications are displayed in a tree structure that echoes the default structure of the <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">K</span></span> menu, making it easy to find the application you are looking for. </p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Settings Modules</span></span> entities</span></dt><dd><p> Provide a list of links to various modules in the <span class="application">System Settings</span> application or to modules for <span class="application">Konqueror</span>, Filemanager or Browser. </p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">KInfoCenter Modules</span></span></span></dt><dd><p> Contains a list of links to various KInfocenter modules documentation. </p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">KIO Workers</span></span></span></dt><dd><p> Contains a list of links to various <acronym class="acronym">KIO</acronym> modules documentation. </p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel"><span class="trademark">UNIX</span>® manual pages</span></span></span></dt><dd><p> <span class="trademark">UNIX</span>® man pages are the traditional on-line documentation format for <span class="trademark">UNIX</span>® systems. Most programs on your system will have a man page. In addition, man pages exist for programming functions and file formats. </p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Scrollkeeper</span></span></span></dt><dd><p>Additional non-<span class="orgname">KDE</span> documentation installed on your system. </p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Browse Info Pages</span></span></span></dt><dd><p> TeXinfo documentation is used by many <acronym class="acronym">GNU</acronym> applications, including <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="command"><span class="command"><strong>gcc</strong></span></span> (the C/C++ compiler), <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="command"><span class="command"><strong>emacs</strong></span></span>, and many others. </p></dd></dl></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="search"></a>The <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Search Options</span></span> tab</h4></div></div></div><p> Searching the help files is fairly intuitive, enter the word(s) you wish to search for in the text box, choose your options (if any), and press <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guibutton">Search</span></span>. The results display in the viewer pane to the right. </p><div class="note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3><p>Search is not case sensitive, <abbr class="abbrev">i.e.</abbr> uppercase and lowercase characters are considered the same. For example, if you search for <span class="quote">“<span class="quote">Shortcut</span>”</span>, results that contain <span class="quote">“<span class="quote">shortcut</span>”</span> will be returned as well.</p></div><p>The options available are:</p><div class="variablelist"><dl class="variablelist"><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Method</span></span></span></dt><dd><p> Choose how to search for multiple words. If you choose <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">and</span></span>, results are returned only if all your search terms are included in the page. <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">or</span></span> returns results if <span class="emphasis"><em>any</em></span> of the search terms are found. </p><p>If your searches are not returning the results you expect, check carefully you haven't excluded the wrong search term with an erroneous setting. </p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Max. results</span></span></span></dt><dd><p>Determines the maximum number of results returned from your search.</p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Scope selection</span></span></span></dt><dd><p>This is used to select the sections where the search will be done. The available options quickly select the most common option, while <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">Custom</span></span> allows one to select single sections. </p></dd></dl></div></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="man-and-info"></a>The <span class="application">Man</span> and <span class="application">Info</span> sections</h3></div></div></div><p>Man pages are the standard <span class="trademark">UNIX</span>® manual pages, and have been in use for many years on many operating systems. They are extremely thorough, and are the very best place to get information about most <span class="trademark">UNIX</span>® commands and applications. When people say <span class="quote">“<span class="quote">RTFM</span>”</span>, the Manual they are referring to is very often the man page.</p><p>The man pages are not perfect. They tend to be in depth, but also extremely technical, often written by developers, and for developers. In some cases this makes them somewhat unfriendly, if not downright impossible for many users to understand. They are, however, the best source of solid information on most command line applications, and very often the only source.</p><p>If you've ever wondered what the number is when people write things like man(1) it means which section of the manual the item is in. You will see <span class="application">KHelpCenter</span> uses the numbers to divide the very many man pages into their own sections, making it easier for you to find the information you're looking for, if you're just browsing.</p><p>Also available are the Info pages, intended to be a replacement for the man pages. The maintainer of some applications no longer update the man pages, so if there is both a man page and an info page available, the info page is probably the most recent. Most applications have one or the other though. If the application you are looking for help on is a <acronym class="acronym">GNU</acronym> utility, you will most likely find it has an info page, not a man page.</p><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="navigation"></a>Navigating inside the <span class="application">Info</span> pages</h4></div></div></div><p>Info documents are arranged hierarchically with each page called a node. All info documents have a <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Top</span></span> node, <abbr class="abbrev">i.e.</abbr> the opening page. You can return to the <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Top</span></span> of an info document by pressing <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Top</span></span>.</p><p><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guibutton">Prev</span></span> & <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guibutton">Next</span></span> are used to move to the previous/next page at the current level of the hierarchy.</p><p>Clicking on a menu item within a document moves you to a lower level in the hierarchy. You may move up the hierarchy by pressing <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guibutton">Up</span></span>.</p><p>Man is treated similarly to info, with the section index being the Top node and each man page on the level below. Man entries are one page long.</p></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="kde-glossary"></a>The <span class="orgname">KDE</span> glossary</h3></div></div></div><p> The glossary provides a quick reference point, where you can look up the definitions of words that may be unfamiliar to you. These range from <span class="orgname">KDE</span> specific applications and technologies, through to general <span class="trademark">UNIX</span>® computing terms. </p><p> In the left hand pane you will see a tree view, with two choices: <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">Alphabetically</span></span> or <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">By Topic</span></span>. Both contain the same entries, sorted differently, to allow you to quickly find the item of interest. </p><p> Navigate down the tree views to the left, and items you select will be displayed on the right. </p></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="menu-and-toolbar-ref"></a>The menus and toolbar</h3></div></div></div><p> <span class="application">KHelpCenter</span> has a very minimal interface, allowing you to concentrate on getting help rather than learning how to use the help browser. </p><p> The icons available to you in the toolbar are as follows: </p><div class="variablelist"><p class="title"><b>Toolbar Icons</b></p><dl class="variablelist"><dt><span class="term"><span class="guiicon">Table of Contents</span></span></dt><dd><p> Go to the main start page of <span class="application">KHelpCenter</span>. </p></dd><dt><span class="term"><span class="guiicon">Back</span></span></dt><dd><p> Go to the previous page you viewed. Click the check mark right to the icon. This displays a list of previously viewed pages. Selecting one will take you directly back to that page. </p></dd><dt><span class="term"><span class="guiicon">Forward</span></span></dt><dd><p> Go forward one page. This icon is only active if you have already used the <span class="guiicon">Back</span> icon. </p></dd><dt><span class="term"><span class="guiicon">Copy</span></span></dt><dd><p> Copy text to the clipboard to be pasted in another application. </p></dd><dt><span class="term"><span class="guiicon">Find</span></span></dt><dd><p> Find a word or words within the currently visible page. </p></dd><dt><span class="term"><span class="guiicon">Increase Font Sizes</span></span></dt><dd><p> Increase the size of the text in the viewer pane. </p></dd><dt><span class="term"><span class="guiicon">Decrease Font Sizes</span></span></dt><dd><p> Decrease the size of the text in the viewer pane. This icon is only enabled if you have previously enlarged the text. </p></dd></dl></div><p> The menus contain the following entries: </p><div class="variablelist"><dl class="variablelist"><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">File</span></span></span></dt><dd><div class="variablelist"><dl class="variablelist"><dt><span class="term"> <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">File</span></span> → <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">Print</span></span> (<span class="shortcut"><strong><span class="keycap"><strong>Ctrl</strong></span>+<span class="keycap"><strong>P</strong></span></strong></span>) </span></dt><dd><p> Print the contents of the currently visible page. Handbooks in <acronym class="acronym">PDF</acronym> format you find on the <a class="ulink" href="https://docs.kde.org/index.php?language=en" target="_top"> <span class="orgname">KDE</span> Documentation Server</a>. </p></dd><dt><span class="term"> <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">File</span></span> → <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">Quit</span></span> (<span class="shortcut"><strong><span class="keycap"><strong>Ctrl</strong></span>+<span class="keycap"><strong>Q</strong></span></strong></span>) </span></dt><dd><p> Close and exit <span class="application">KHelpCenter</span> </p></dd></dl></div></dd></dl></div><div class="variablelist"><dl class="variablelist"><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Edit</span></span></span></dt><dd><div class="variablelist"><dl class="variablelist"><dt><span class="term"> <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Edit</span></span> → <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">Copy</span></span> (<span class="shortcut"><strong><span class="keycap"><strong>Ctrl</strong></span>+<span class="keycap"><strong>C</strong></span></strong></span>) </span></dt><dd><p> Copy the selected text to the clipboard. </p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Edit</span></span> → <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">Select All</span></span> (<span class="shortcut"><strong><span class="keycap"><strong>Ctrl</strong></span>+<span class="keycap"><strong>A</strong></span></strong></span>) </span></dt><dd><p> Select all the text in the current page. </p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Edit</span></span> → <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">Find...</span></span> (<span class="shortcut"><strong><span class="keycap"><strong>Ctrl</strong></span>+<span class="keycap"><strong>F</strong></span></strong></span>) </span></dt><dd><p> Find a word or words in the currently visible page. </p></dd></dl></div></dd></dl></div><div class="variablelist"><dl class="variablelist"><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">View</span></span></span></dt><dd><div class="variablelist"><dl class="variablelist"><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">View</span></span> → <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guisubmenu">Set Encoding</span></span> </span></dt><dd><p> Change the encoding of the current page. Normally, the default setting of <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">Default</span></span> should be sufficient, but if you are having problems viewing pages written in languages other than English, you may need to choose a specific encoding in this menu. </p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">View</span></span> → <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guisubmenu">Full Screen Mode</span></span> </span></dt><dd><p> Changes <span class="application">KHelpCenter</span> to full screen mode, in which the <span class="application">KHelpCenter</span> window takes up the whole screen, and does not have the usual window decorations. To exit full screen mode, press <span class="keycap"><strong>Ctrl</strong></span>+<span class="keycap"><strong>Shift</strong></span>+<span class="keycap"><strong>F</strong></span>. </p></dd></dl></div></dd></dl></div><div class="variablelist"><dl class="variablelist"><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Go</span></span></span></dt><dd><div class="variablelist"><dl class="variablelist"><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Go</span></span> → <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">Table of Contents</span></span> (<span class="shortcut"><strong><span class="keycap"><strong>Alt</strong></span>+<span class="keycap"><strong>Home</strong></span></strong></span>)</span></dt><dd><p> Go to the main start page of <span class="application">KHelpCenter</span>. </p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Go</span></span> → <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">Previous Page</span></span> (<span class="shortcut"><strong><span class="keycap"><strong>Ctrl</strong></span>+<span class="keycap"><strong>PgUp</strong></span></strong></span>)</span></dt><dd><p> Go to the previous page of the current documentation. </p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Go</span></span> → <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">Next Page</span></span> (<span class="shortcut"><strong><span class="keycap"><strong>Ctrl</strong></span>+<span class="keycap"><strong>PgDown</strong></span></strong></span>)</span></dt><dd><p> Go to the next page of the current documentation. </p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Go</span></span> → <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">Back</span></span> (<span class="shortcut"><strong><span class="keycap"><strong>Alt</strong></span>+<span class="keysym">Left</span></strong></span>)</span></dt><dd><p>Go back to the previous page you were viewing.</p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Go</span></span> → <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">Forward</span></span> (<span class="shortcut"><strong><span class="keycap"><strong>Alt</strong></span>+<span class="keysym">Right</span></strong></span>)</span></dt><dd><p>If you have previously moved back with the back icon or menu entry, you can work your way forward again with this menu entry.</p></dd></dl></div></dd></dl></div><div class="variablelist"><a name="bookmarks-menu"></a><dl class="variablelist"><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Bookmarks</span></span></span></dt><dd><div class="variablelist"><dl class="variablelist"><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Bookmarks</span></span> → <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">Add Bookmark</span></span> (<span class="shortcut"><strong><span class="keycap"><strong>Ctrl</strong></span>+<span class="keycap"><strong>B</strong></span></strong></span>)</span></dt><dd><p> Add a bookmark for the current page, the title of the pages is appended to the bookmarks menu. Use the action <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">Delete Bookmark</span></span> in the context menu of an item to remove it from the menu. </p></dd><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Bookmarks</span></span> → <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">New Bookmarks Folder</span></span></span></dt><dd><p> Open the <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guilabel">New Folder</span></span> dialog where you can add new submenuitems to the bookmarks menu. </p></dd></dl></div></dd></dl></div><div class="variablelist"><dl class="variablelist"><dt><span class="term"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Settings</span></span></span></dt><dd><div class="variablelist"><dl class="variablelist"><dt><span class="term"> <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Settings</span></span> → <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenuitem">Configure Fonts...</span></span> </span></dt><dd><p> Allows you to configure the font family and size used by <span class="application">KHelpCenter</span>. </p></dd></dl></div></dd></dl></div><p> Additionally <span class="application">KHelpCenter</span> has the common <span class="orgname">KDE</span> <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Settings</span></span> and <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="guiitem"><span class="guimenu">Help</span></span> menu items, for more information read the sections about the <a class="ulink" href="help:/fundamentals/menus.html#menus-settings" target="_top">Settings Menu</a> and <a class="ulink" href="help:/fundamentals/menus.html#menus-help" target="_top">Help Menu</a> of the <span class="orgname">KDE</span> Fundamentals. </p></div></div></div><div id="footer"><div class="navCenter"><table class="navigation"><tr><td class="prevCell"><a accesskey="p" href="invoking-help.html">Prev</a></td><td class="upCell"><a accesskey="h" href="index.html">Contents</a></td><td class="nextCell"><a accesskey="n" href="credits.html">Next</a></td></tr><tr><td class="prevCell">Invoking Help </td><td class="upCell"><span class="orgname">KDE</span> Help System Handbook</td><td class="nextCell"> Credits and License</td></tr></table></div><div id="footer_text">Would you like to make a comment or contribute an update to this page?<br>Send feedback to the <a href="mailto:kde-doc-english@kde.org" class="footer_email">KDE Docs Team</a></div></div></div></body></html></FILENAME><FILENAME filename="credits.html"><html><head><title>Credits and License</title><link rel="stylesheet" type="text/css" href="help:/kdoctools5-common/kde-default.css"><link rel="stylesheet" type="text/css" href="help:/kdoctools5-common/kde-docs.css"><link rel="stylesheet" type="text/css" href="help:/kdoctools5-common/kde-localised.css"><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"><meta name="keywords" content="KDE, kdebase, khelpcenter, kdehelp, help, help center, KDE help center"><link rel="home" href="index.html" title="The KHelpCenter"><link rel="up" href="help-system-handbook.html" title="Chapter 1. KDE Help System Handbook"><link rel="prev" href="interface-basics.html" title="The KHelpCenter interface"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="GENERATOR" content="KDE XSL Stylesheet V1.14 using libxslt"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div id="content"><div id="header"><div id="header_content"><div id="header_left"><div id="header_right"><img src="help:/kdoctools5-common/top-kde.jpg" width="36" height="34"> Credits and License</div></div></div></div><div class="navCenter"><table class="navigation"><tr><td class="prevCell"><a accesskey="p" href="interface-basics.html">Prev</a></td><td class="upCell"><span class="orgname">KDE</span> Help System Handbook</td><td class="nextCell"></td></tr></table></div><div id="contentBody"><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="credits"></a>Credits and License</h2></div></div></div><p><span class="application">KHelpCenter</span></p><p>Originally developed by <span class="firstname">Matthias</span> <span class="surname">Elter</span> <code class="email">(elter AT kde.org)</code></p><p>The current maintainer is <span class="firstname">Cornelius</span> <span class="surname">Schumacher</span> <code class="email">(schumacher AT kde.org)</code></p><p><a name="gnu-fdl"></a>This documentation is licensed under the terms of the <a class="ulink" href="help:/kdoctools5-common/fdl-license.html" target="_top">GNU Free Documentation License</a>.</p><p>This program is licensed under the terms of the <a class="ulink" href="help:/kdoctools5-common/gpl-license.html" target="_top">GNU General Public License</a>.</p></div></div><div id="footer"><div class="navCenter"><table class="navigation"><tr><td class="prevCell"><a accesskey="p" href="interface-basics.html">Prev</a></td><td class="upCell"><a accesskey="h" href="index.html">Contents</a></td><td class="nextCell"></td></tr><tr><td class="prevCell">The <span class="application">KHelpCenter</span> interface </td><td class="upCell"><span class="orgname">KDE</span> Help System Handbook</td><td class="nextCell"> </td></tr></table></div><div id="footer_text">Would you like to make a comment or contribute an update to this page?<br>Send feedback to the <a href="mailto:kde-doc-english@kde.org" class="footer_email">KDE Docs Team</a></div></div></div></body></html></FILENAME></div></div><div id="footer"><div class="navCenter"><table class="navigation"><tr><td class="prevCell"><a accesskey="p" href="index.html">Prev</a></td><td class="upCell"><a accesskey="h" href="index.html">Contents</a></td><td class="nextCell"><a accesskey="n" href="invoking-help.html">Next</a></td></tr><tr><td class="prevCell">The <span class="application">KHelpCenter</span> </td><td class="upCell"> </td><td class="nextCell"> Invoking Help</td></tr></table></div><div id="footer_text">Would you like to make a comment or contribute an update to this page?<br>Send feedback to the <a href="mailto:kde-doc-english@kde.org" class="footer_email">KDE Docs Team</a></div></div></div></body></html></FILENAME></div></div><div id="footer"><div class="navCenter"><table class="navigation"><tr><td class="prevCell"></td><td class="upCell"> </td><td class="nextCell"><a accesskey="n" href="help-system-handbook.html">Next</a></td></tr><tr><td class="prevCell"> </td><td class="upCell"> </td><td class="nextCell"> <span class="orgname">KDE</span> Help System Handbook</td></tr></table></div><div id="footer_text">Would you like to make a comment or contribute an update to this page?<br>Send feedback to the <a href="mailto:kde-doc-english@kde.org" class="footer_email">KDE Docs Team</a></div></div></div></body></html></FILENAME>
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