源
XML
<xml>
<block>
<el name="a">92346</el>
<el name="b">lorem</el>
</block>
<block>
<el name="a">89753</el>
<el name="b">ipsum</el>
</block>
</xml>
宾语
我想插入< el name =“c”> 0< / el>每个< block>中的元素使用Linux shell脚本：
<xml>
<block>
<el name="a">92346</el>
<el name="b">lorem</el>
<el name="c">0</el>
</block>
<block>
<el name="a">89753</el>
<el name="b">ipsum</el>
<el name="c">0</el>
</block>
</xml>
我可以使用XmlStarlet附加元素：
xmlstarlet ed -a '/xml/block/el[@name="b"]' \
--type 'elem' -n 'el' -v 0
问题
解决方法
答案
> / xml / block / el [not(@name)]
>如other answer所述：
You can’t insert an element with an attribute directly but since
every edit operation is performed in sequence,you can insert an
element and then add an attribute.
命令
xmlstarlet ed -a '/xml/block/el[@name="b"]' \
-t 'elem' -n 'el' -v 0 \
-i '/xml/block/el[not(@name)]' \
-t 'attr' -n 'name' -v 'c'
