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<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>xmlcatalog</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry"><a name="idm1"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2>xmlcatalog &#8212; 
 Command line tool to parse and manipulate <acronym class="acronym">XML</acronym>
 or <acronym class="acronym">SGML</acronym> catalog files.
 </div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="cmdsynopsis"><code class="command">xmlcatalog</code> [ <code class="option">--sgml</code> | <code class="option">--shell</code> | <code class="option">--convert</code> | <code class="option">--create</code> | <code class="option">--del <code>VALUE(S)</code></code> | 
 [ 
 <code class="option">--add
 <code>TYPE</code>
 <code>ORIG</code>
 <code>REPLACE</code>
 </code>
 | <code class="option">--add <code>FILENAME</code></code> ]
 | <code class="option">--noout</code> | <code class="option">--no-super-update</code> | 
 [ <code class="option">-v</code> | <code class="option">--verbose</code> ]
 ] {<code>CATALOGFILE</code>} {<code>ENTITIES</code>...}</div></div><div class="refsect1"><a name="description"></a><h2>DESCRIPTION</h2>
 xmlcatalog is a command line application allowing users to monitor and
 manipulate <acronym class="acronym">XML</acronym> and <acronym class="acronym">SGML</acronym> catalogs. It
 is included in libxml(3).
 
 Its functions can be invoked from a single command from the command line,
 or it can perform multiple functions in interactive mode. It can operate
 on both <acronym class="acronym">XML</acronym> and <acronym class="acronym">SGML</acronym> files.
 </div><div class="refsect1"><a name="options"></a><h2>OPTIONS</h2>
 xmlcatalog accepts the following options (in alphabetical order):
 <div class="variablelist"><dl class="variablelist"><dt>
 <code class="option">--add
 <code>TYPE</code>
 <code>ORIG</code>
 <code>REPLACE</code>
 </code>
 </dt><dd>
 Add an entry to <code class="filename">CATALOGFILE</code>. <code>TYPE</code>
 indicates the type of entry. Possible types are: <code>public</code>, <code>system</code>, <code>uri</code>, <code>rewriteSystem</code>, <code>rewriteURI</code>, <code>delegatePublic</code>, <code>delegateSystem</code>, <code>delegateURI</code>, <code>nextCatalog</code>. <code>ORIG</code> is the original
 reference to be replaced, and <code>REPLACE</code>
 is the <acronym class="acronym">URI</acronym> of the replacement entity to be
 used. The <code class="option">--add</code> option will not overwrite
 <code class="filename">CATALOGFILE</code>, outputting
 to <code class="filename">stdout</code>, unless
 <code class="option">--noout</code> is used. The <code class="option">--add</code> will
 always take three parameters even if some of the <acronym class="acronym">XML</acronym>
 catalog constructs will have only a single argument.
 </dd><dt><code class="option">--add <code>FILENAME</code></code></dt><dd>
 If the <code class="option">--add</code> option is used following
 the <code class="option">--sgml</code> option, only a single argument,
 a <code>FILENAME</code>, is used. This is used to add
 the name of a catalog file to an <acronym class="acronym">SGML</acronym> supercatalog,
 a file that contains references to other included <acronym class="acronym">SGML</acronym>
 catalog files.
 </dd><dt><code class="option">--convert</code></dt><dd>
 Convert SGML catalog to XML.
 </dd><dt><code class="option">--create</code></dt><dd>
 Create a new <acronym class="acronym">XML</acronym> catalog. Outputs
 to <code class="filename">stdout</code>,
 ignoring <code>filename</code> unless <code class="option">--noout</code> is
 used, in which case it creates a new catalog
 file <code>filename</code>.
 </dd><dt><code class="option">--del <code>VALUE(S)</code></code></dt><dd>
 Remove entries from <code>CATALOGFILE</code>
 matching <code>VALUE(S)</code>. The <code class="option">--del</code>
 option will not overwrite <code>CATALOGFILE</code>,
 outputting to <code class="filename">stdout</code>,
 unless <code class="option">--noout</code> is used.
 </dd><dt><code class="option">--noout</code></dt><dd>
 Save output to the named file rather than outputting
 to <code class="filename">stdout</code>.
 </dd><dt><code class="option">--no-super-update</code></dt><dd>
 Do not update the <acronym class="acronym">SGML</acronym> super catalog.
 </dd><dt><code class="option">--shell</code></dt><dd>
 Run a shell allowing interactive queries on catalog
 file <code>CATALOGFILE</code>. For the set of available
 commands see <a class="xref" href="#shell" title="SHELL COMMANDS">the section called &#8220;SHELL COMMANDS&#8221;</a>.
 </dd><dt><code class="option">--sgml</code></dt><dd>
 Uses <acronym class="acronym">SGML</acronym> super catalogs for <code class="option">--add</code>
 and <code class="option">--del</code> options.
 </dd><dt><code class="option">-v</code>, <code class="option">--verbose</code></dt><dd>Output debugging information.</dd></dl></div>
 Invoking xmlcatalog non-interactively without a designated action
 (imposed with options like <code class="option">--add</code>) will result in a lookup
 of the catalog entry for <code>ENTITIES</code> in the
 catalog denoted with <code>CATALOGFILE</code>. The
 corresponding entries will be output to the command line. This mode of
 operation, together with <code class="option">--shell</code> mode and non-modifying
 (i.e. without <code class="option">--noout</code>) direct actions, allows for
 a special shortcut of the void <code>CATALOGFILE</code>
 specification (possibly expressed as "" in the shell
 environment) appointing the default system catalog. That simplifies the
 handling when its exact location is irrelevant but the respective built-in
 still needs to be consulted.
 </div><div class="refsect1"><a name="shell"></a><h2>SHELL COMMANDS</h2>
 Invoking xmlcatalog with
 the <code class="option">--shell <code>CATALOGFILE</code></code> option opens
 a command line shell allowing interactive access to the catalog file
 identified by <code>CATALOGFILE</code>. Invoking the shell
 provides a command line prompt after which the following commands (described in
 alphabetical order) can be entered.
 <div class="variablelist"><dl class="variablelist"><dt>
 <code class="option">add
 <code>TYPE</code>
 <code>ORIG</code>
 <code>REPLACE</code>
 </code>
 </dt><dd>
 Add an entry to the catalog file. <code>TYPE</code>
 indicates the type of entry. Possible types are: <code>public</code>, <code>system</code>, <code>uri</code>, <code>rewriteSystem</code>, <code>rewriteURI</code>, <code>delegatePublic</code>, <code>delegateSystem</code>, <code>delegateURI</code>, <code>nextCatalog</code>. <code>ORIG</code> is the original
 reference to be replaced, and <code>REPLACE</code>
 is the <acronym class="acronym">URI</acronym> of the replacement entity to be
 used. The <code class="option">--add</code> option will not overwrite
 <code class="filename">CATALOGFILE</code>, outputting
 to <code class="filename">stdout</code>, unless
 <code class="option">--noout</code> is used. The <code class="option">--add</code> will
 always take three parameters even if some of the <acronym class="acronym">XML</acronym>
 catalog constructs will have only a single argument.
 </dd><dt><code class="option">debug</code></dt><dd>
 Print debugging statements showing the steps xmlcatalog is executing.
 </dd><dt><code class="option">del <code>VALUE(S)</code></code></dt><dd>
 Remove the catalog entry corresponding to <code>VALUE(S)</code>.
 </dd><dt><code class="option">dump</code></dt><dd>Print the current catalog.</dd><dt><code class="option">exit</code></dt><dd>Quit the shell.</dd><dt><code class="option">public <code>PUBLIC-ID</code></code></dt><dd>
 Execute a Formal Public Identifier lookup of the catalog entry
 for <code>PUBLIC-ID</code>. The corresponding entry will be
 output to the command line.
 </dd><dt><code class="option">quiet</code></dt><dd>Stop printing debugging statements.</dd><dt><code class="option">system <code>SYSTEM-ID</code></code></dt><dd>
 Execute a Formal Public Identifier lookup of the catalog entry
 for <code>SYSTEM-ID</code>. The corresponding entry will be
 output to the command line.
 </dd></dl></div></div><div class="refsect1"><a name="environment"></a><h2>ENVIRONMENT</h2><div class="variablelist"><dl class="variablelist"><dt><code class="envar">XML_CATALOG_FILES</code></dt><dd><acronym class="acronym">XML</acronym> catalog behavior can be changed by redirecting
 queries to the user's own set of catalogs. This can be done by setting
 the <code class="envar">XML_CATALOG_FILES</code> environment variable to a space-separated
 list of catalogs. Use percent-encoding to escape spaces or other characters.
 An empty variable should deactivate loading the default catalog from
 <code class="filename">/etc/xml/catalog</code> or, more specifically,
 <code class="filename">${sysconfdir}/xml/catalog</code>.
 </dd></dl></div></div><div class="refsect1"><a name="diagnostics"></a><h2>DIAGNOSTICS</h2>
 xmlcatalog return codes provide information that can be used when
 calling it from scripts.
 <div class="variablelist"><dl class="variablelist"><dt>0</dt><dd>No error</dd><dt>1</dt><dd>Failed to remove an entry from the catalog</dd><dt>2</dt><dd>Failed to save to the catalog, check file permissions</dd><dt>3</dt><dd>Failed to add an entry to the catalog</dd><dt>4</dt><dd>Failed to look up an entry in the catalog</dd></dl></div></div><div class="refsect1"><a name="seealso"></a><h2>SEE ALSO</h2>libxml(3)
 
 More information can be found at
 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">libxml(3) web page <a class="ulink" href="https://gitlab.gnome.org/GNOME/libxml2" target="_top">https://gitlab.gnome.org/GNOME/libxml2</a>
 </li><li class="listitem">libxml(3) catalog support web page
 at <a class="ulink" href="https://gitlab.gnome.org/GNOME/libxml2/-/wikis/Catalog-support" target="_top">https://gitlab.gnome.org/GNOME/libxml2/-/wikis/Catalog-support</a>
 </li><li class="listitem">James Clark's <acronym class="acronym">SGML</acronym> catalog
 page <a class="ulink" href="http://www.jclark.com/sp/catalog.htm" target="_top">http://www.jclark.com/sp/catalog.htm</a>
 </li><li class="listitem"><acronym class="acronym">OASIS</acronym> <acronym class="acronym">XML</acronym> catalog specification
 <a class="ulink" href="http://www.oasis-open.org/committees/entity/spec.html" target="_top">http://www.oasis-open.org/committees/entity/spec.html</a>
 </li></ul></div>
 </div></div></body></html>