I'm running a vanilla 1.19 Java server.
I have two questions ...
Q1: Using commands, how can I get an inventory item's damage?
So far, I have /data get entity @p Inventory[{Slot:8b}]
This gives me info about the item in the 9th toolbar slot ... but this command returns a structure.
I want just .Damage; how can I get just that value?
Q2: Using commands, how do I go about setting the damage for this item?
Thanks for any help!
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I don’t play Minecraft much anymore, so it’s hard for me to keep up with changes and additions. To keep this post updated, I need to know about changes both in the files and in the way Minecraft reads them. If you know of anything that is wrong or outdated in the GUIde, or you notice a change in any part of Minecraft’s GUI, post here (or PM me) and let me know. I will check it out and update this thing.
IMPORTANT COPYRIGHT INFORMATION:
The GUIde is copyright © Cycloneblaze 2013 - infinity and may not be reproduced elsewhere without my express permission in writing.
To clarify, this means the text I have typed out here is copyright of me, and you cannot go posting it wherever you like. It may not appear ANYWHERE else, other than this specific thread, without my permission! If you need permission to do so, you must get it from me in a private message first.
However, this copyright does not extend to the images I used. All of them are screenshots of, or textures from, the copyrighted program Minecraft, © Mojang AB 2009-2016. I use them here under fair use guidelines (or something like that...). I hereby forfeit all right I may have gained to those unedited images. And as for the edited ones, such as reference images, I forfeit all rights I have to those as well. Use them as you wish – in fact I encourage it. 
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The GUIde is, as the name suggests, a complete and instructive guide to the intricacies of Minecraft's GUI textures for all you resource pack makers out there. The GUI images are not at all intuitive and there is no help or information to figure out how they work - until three or so years ago now, that is!
Previously the GUIde was featured across one, then three, posts in this and an older thread. Now it lives in a Google Doc so I can update it without wrangling with the forum software. The GUIde is updated (eventually) to the latest major version of Minecraft and this thread is monitored for comments, questions, or additions.
Speaking of which, if you have any comments, questions, or additions, you are encouraged to contribute by making a post here! Or private messaging me. Many updates to the GUIde have been predicated by the help of diligent readers, as you may see below. Any information at all is welcome, especially if the guide seems to be out of date.
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