Various

Batch Task
Source: https://github.com/heyzec/Inkscape-Extensions 

  

Delete Above
Delete the selected node(s) and any other nodes that are completely within the bounding-boxes of the selected nodes that have a greater z-order. Simply put: you select a "background" rectangle, then use this plugin to delete it and everything that appears on top of it. 

 Take some drawing and select the target object 

 

 Run the extension and get the result

Edit Attributes
Edits an attribute on all selected elements. Available edit options: 

 

 set sets new value of attribute (adds attribute if necessary) 

 append adds new value to the end of current value of attribute 

 prefix adds new value to the beginning of current value of attribute 

 subtract deletes the given value string from current value of attribute 

 remove deletes attribute of given name

Import Attributes
Imports attribute values from given text file. Lines in the file must be in format elementId,attributeName,value . Malformed ids will be skipped (you will get a warning). 

 Get the items you want to modify 

 

 Run the extension 

 Select the file you want to import data from. Example:  C:\Users\test\Desktop\test.txt 

 rect823,y,30

rect823,x,30

rect823,width,130

rect823,height,130 

 

 Check the XML tree for changed values 

 

  

Random Delete
This extensions does what it says. It allows to delete with a certain probability each of the selected objects.

Remove Obsolete Attributes
Remove attributes sodipodi:absref , sodipodi:docbase and sodipodi:docname from all elements that contain them. These attributes contain absolute paths to resources which can pose a security issue. This is a legacy extension and might not be required nowadays.

Set CSS Class On Elements
Set a CSS class on the selected elements. Their current inline styles will be removed