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<html><head><title>Options</title><link rel="stylesheet" type="text/css" href="help:/common/kde-default.css"><link rel="stylesheet" type="text/css" href="help:/common/kde-docs.css"><link rel="stylesheet" type="text/css" href="help:/common/kde-localised.css"><link rel="stylesheet" type="text/css" href="help:/common/kubuntu.css"><meta name="generator" content="DocBook XSL Stylesheets V1.76.1"><link rel="home" href="index.html" title="Introduction To The Command Line"><link rel="up" href="index.html" title="Introduction To The Command Line"><link rel="prev" href="elevated-privileges.html" title="Executing Commands with Elevated Privileges"><link rel="next" href="man-help.html" title="&#8220;Man&#8221; and Getting Help"><link rel="copyright" href="legal.html" title="Credits and License"><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><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:/common/top-kde.jpg" width="36" height="34"> Options</div></div></div></div><div class="navCenter"><table class="navigation"><tr><td class="prevCell"><a accesskey="p" href="elevated-privileges.html">Prev</a></td><td class="upCell"> </td><td class="nextCell"><a accesskey="n" href="man-help.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="options"></a>Options</h2></div></div></div><p>
The default behavior for a command may usually be modified by adding 
<span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="command"><span class="command"><strong>--option</strong></span></span> to the command. For example, the <a class="link" href="files-directories.html#ls" title="ls - list files"><span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="command"><span class="command"><strong>ls</strong></span></span></a> command has an <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="command"><span class="command"><strong>-s</strong></span></span> 
option. The <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="command"><span class="command"><strong>ls -s</strong></span></span> will include file sizes in the listing. 
There is also a <span xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" class="command"><span class="command"><strong>-h</strong></span></span> option to display file sizes in a 
<span class="quote">&#8220;<span class="quote">human readable</span>&#8221;</span> format.
</p><p>
Options can be grouped in clusters, so
</p><pre class="screen">ls -sh</pre><p>
is the same command as
</p><pre class="screen"> ls -s -h</pre><p>
Most options have a long version prefixed with two dashes instead of one, so
</p><pre class="screen">ls --size --human-readable</pre><p> is the same command as 
</p><pre class="screen">ls -sh</pre><p>
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