Command xquery

Name

xquery evaluate an XQUERY expression and print the result

Synopsis

xquery [-f xquery-file] [-v] [-q xquery-expr] [-i input-file] [-n] [-nons] [-ns prefix=uri [-ns prefix=uri ...]] [xquery-expr] [var value [var value]]

Description

-f xquery-file read xquery script from file

-i context use context as the source xml document, otherwise stdin

if context is an XML expression which is an item then use it directly as the context item.

-q query use argument as xquery-expr
-n do not use a source context
-v if -V is given then the remaining args are treated as name/value pairs and assigned to xquery external variables
-nons Do not import global namespace declarations from the shell environment
-ns prefix=uri Add a predeclared namespace delcaration

xquery-expr xquery expression

If no -q or -f is given then the next argument is treated as the xquery expression/script.

Not all options are compatible. You cannot read both the query and the context from stdin.
If you supply variables then -q must be supplied.

Example

$ xls | xquery '//file[1]/@name/string()'
.classpath

$ xquery -i <[<foo/>] .
<foo/>

Namespace example using a renamed prefix for a namespace

$ echo "<x:a xmlns:x='foo' />" | xquery  -nons -ns y=foo /y:a
<x:a xmlns:x="foo"/>

Return Value

Returns 0 if the the xquery expression executed successfully. otherwise 1

CategoryCommands

xmlsh - XML Shell : CommandXquery

Revision [304]