XQuery Extension Modules - eXist: A NoSQL Database and Application Development Platform - page 502

This module allows you to work with files and directories on the filesystem (outside
the database). There are functions like file:mkdir , file:move , and file:serialize
(in several variants). You need DBA privileges to use it.
For Windows, passing file and directory names to functions in the
file module can lead to some odd behavior. This only seems to
work when you do not specify the file:// prefix, only use backslashes
as the path separator, and always start the name with a backslash
(e.g., \C:\test\erik\test.xml instead of file://c:/test/erik/test.xml ).
ft
Description
Querying Lucene's full-text index
Namespace
ft="http://exist-db.org/xquery/lucene"
Type/default status
Java; enabled in $EXIST_HOME/conf.xml
Class
org.exist.xquery.modules.lucene.LuceneModule
This module provides access to Lucene's full-text index results. How to do this is
described in “Searching with the Full-Text Index” on page 292 .
ftpclient
Description
Performing FTP requests as a client
Namespace
ftpclient="http://exist-db.org/xquery/ftpclient"
Type/default status
Java; disabled in $EXIST_HOME/conf.xml ; enabled in $EXIST_HOME/extensions/
build.properties
Class
org.exist.xquery.modules.ftpclient.FTPClientModule
This module allows you to use eXist as a client against an FTP server. You can read
and write (binary) files and get directory listings.