xmlstarlet

This is the xml-data: <DATA VERSION="1.0"> <TABLES> <ITEM> <identifyer V="1234"></identifyer> <property1 V="abcde"></property1> <Property2 V="qwerty"></property2> </ITEM> <ITEM> <identifyer V="5678"></identifyer> <Property1 V="zyxwv"></property1> <Property2 V="dvorak"></property2> </ITEM> </TABLES> </DATA> I am trying to find property2 of the item where identifyer has value 1234 . I can select the data: $ xmlstarlet sel -t -c "/DATA/TABLES/ITEM/identifyer [@V=1234]" test.xml <identifyer V="1234"/> Two types of output would be desirable: $ xmlstarlet <some magic> <identifyer V="1234"><

Consider this example from w3schools : <?xml version="1.0" encoding="ISO-8859-1"?> <bookstore> <book category="COOKING"> <title lang="en">Everyday Italian</title> <author>Giada De Laurentiis</author> <year>2005</year> <price>30.00</price> </book> <book category="CHILDREN"> <title lang="en">Harry Potter</title> <author>J K. Rowling</author> <year>2005</year> <price>29.99</price> </book> <book category="WEB"> <title lang="en">XQuery Kick Start</title> <author>James McGovern</author> <author>Per Bothner</author> <author>Kurt Cagle</author> <author>James Linn</author> <author>Vaidyanathan

The command $ xmlstarlet sel -t -c "/collection/record" file.xml seems to load the whole file into memory, before applying the given Xpath expression. This is not usable for large XML files. Does xmlstarlet provide a streaming mode to extract subelements from a large (100G+) XML file? Since I only needed a tiny subset of XPath for large XML files, I actually implemented a little tool myself: xmlcutty . The example from my question could be written like this: $ xmlcutty -path /collection/record file.xml Xmlstarlet translates all (or most) operations into xslt transformations, so the short

$ vim test.xml <?xml version="1.0" encoding="UTF-8" ?> <config> </config> $ xmlstarlet ed -i "/config" -t elem -n "sub" -v "" test.xml <?xml version="1.0" encoding="UTF-8"?>  <config> </config> But I wanted sub to be a child of config. How should I change the xpath parameter of -i ? BONUS: Is it possible to insert the child directly with an attribute and even have it set to a value? Something like: $ xmlstarlet ed -i "/config" -t elem -n "sub" -v "" -a attr -n "class" -v "com.foo" test.xml npostavs Use -s (or --subnode ) instead of -i . Regarding the bonus, you can't insert an

Versions of XMLStarlet found in current Linux distributions have a limit of 128 operations per xmlstarlet ed invocation, and all versions are limited by the operating system's maximum command-line length. How can this be worked around? The following breaks long xmlstarlet edit lists into a pipeline of shorter operations: xmlstarlet_max_commands=100 # max per instance; see http://sourceforge.net/tracker/?func=detail&aid=3488240&group_id=66612&atid=515106 shopt -s extglob # enable +([0-9]) as an equivalent to the regex ^[[:digit:]]+ xmlstarlet_ed() { declare -a global_parameters declare -a