How to delete all lines found in another txt document in notepad++

[Peeyush Mishra]

I have two files, name it as target file and source file. I want to delete all the entries in the target file which are present in the source file. How to achieve this in notepad++.

Both target and source file have one column

Couldn’t find anything similar

Target File Content:
9048019c-cf28-4f33-bc67-e18dc1facc40
ef869420-2987-4e54-a1ea-3fe074b9a2cf
12622407-a7b1-4cbb-b83f-0b9631422527
824fb2cf-1c73-4f61-8687-6ccae090ffb5
9048019c-cf28-4f33-bc67-e18dc1facc40
07b433aa-c6d2-4699-809d-e094a20516be
be103490-370b-407b-b507-28238aadf661
824fb2cf-1c73-4f61-8687-6ccae090ffb5
4137e7aa-6b2b-49b1-b2d8-38f862d7c5e1
26844327-4b24-47d0-b421-0f2bedeba141
be103490-370b-407b-b507-28238aadf661
824fb2cf-1c73-4f61-8687-6ccae090ffb5
4c00e75d-f862-4011-a3d8-1cecc74a8cc7
a5bcaf38-413d-4ead-a5fb-1c75ecfe3b77
26844327-4b24-47d0-b421-0f2bedeba141

Source File Content
12622407-a7b1-4cbb-b83f-0b9631422527
07b433aa-c6d2-4699-809d-e094a20516be
4137e7aa-6b2b-49b1-b2d8-38f862d7c5e1
4c00e75d-f862-4011-a3d8-1cecc74a8cc7

[PeterJones]

@Peeyush-Mishra ,

Your question is similar to https://community.notepad-plus-plus.org/topic/11908/bookmarking-lines-containing-values-in-other-file and https://community.notepad-plus-plus.org/topic/20052/search-and-replace-between-2-files …

Can you learn from those questions and figure out how to adapt those solutions to delete from your target file? (For example, in the “bookmarking” example, after “bookmarking” in the target file, you could delete the bookmarked lines using Search > Bookmark > Remove Bookmarked Lines; or with the search-and-replace, instead of replacing with some actual value, you could replace-with-empty, which is effectively deleting)

I thought there were others, too; at some point in the past, I remember this being solved with PythonScript, but I haven’t found it yet.

[PeterJones]

@Peeyush-Mishra

It’s still not the one with a PythonScript solution, but I found “Use Text File to Remove Lines” which I believe is exactly what you want to do. Pay attention to the caveats between the solutions given by @guy038 in that discussion and the ones from me – they each have their pros and cons.

[Alan Kilborn]

@PeterJones

Here’s one that is very similar to this current question:

https://community.notepad-plus-plus.org/topic/20443/deleting-numbers-from-list-1-that-also-appear-in-list-2

A posting in that thread links to a PythonScript solution here:

https://community.notepad-plus-plus.org/post/54316