Xmlstarlet: Difference between revisions

 
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XMLStarlet is a command line tool for manipulation of XML. It exposes XPath, XSLT, and validation among many other capabilities. On FreeBSD, it is generally invoked as <tt>xml</tt> and is available from the Ports Collection in <tt>textproc/xmlstarlet</tt>; on Linux, it is generally invoked as <tt>xmlstarlet</tt> (throughout the rest of this article, I will use <tt>xml</tt>). XMLstarlet invocations take the form: <tt>xml command [command options] [filename]</tt>. It is intended for use within pipelines; any diagnostic output generated will be placed on stderr. To get help on a command, run <tt>xml command --help</tt>.<br>
XMLStarlet is a command line tool for manipulation of [[XML]]. It exposes XPath, XSLT, and validation among many other capabilities. On FreeBSD, it is generally invoked as <tt>xml</tt> and is available from the Ports Collection in <tt>textproc/xmlstarlet</tt>; on Linux, it is generally invoked as <tt>xmlstarlet</tt> (throughout the rest of this article, I will use <tt>xml</tt>). XMLstarlet invocations take the form: <tt>xml command [command options] [filename]</tt>. It is intended for use within pipelines; any diagnostic output generated will be placed on stderr. To get help on a command, run <tt>xml command --help</tt>.<br>
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As more and more tools generate XML-based output ([[subversion]], [http://insecure.org/nmap nmap], etc), xmlstarlet becomes a useful and flexible tool for working with XML in a stream-editing context.
As more and more tools generate XML-based output ([[subversion]], [http://insecure.org/nmap nmap], etc), xmlstarlet becomes a useful and flexible tool for working with XML in a stream-editing context.
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===Counting===
===Counting===
Count all nodes in a document:<code>xml sel -t -v "count(//node())"
* Count all nodes in a document:<code>xml sel -t -v "count(//node())"</code>
Count all occurrences of <tt>somenode</tt> nodes:<code>xml sel -t -v "count(//somenode)"</code>
* Count all occurrences of <tt>somenode</tt> nodes:<code>xml sel -t -v "count(//somenode)"</code>


==See Also==
==See Also==
* [http://xmlstar.sourceforge.net/doc/UG/index.html XmlStarlet reference]
* [http://xmlstar.sourceforge.net/doc/UG/index.html XmlStarlet reference]