How to quickly remove duplicate lines?

[borifax]

Does anyone know a way to quickly remove duplicate lines from one of the two files?
After comparing the two files, I got the result as shown in the screenshot and I don't know how to efficiently remove repeated lines from one of them.

[sdottaka]

WinMerge doesn't have the ability to remove duplicate rows, but you can do something similar with regular expression substitutions.

Or, a general text editor has such a function, so please try using it.

For example, in Notepad ++, see the following URL.

https://stackoverflow.com/questions/3958350/removing-duplicate-rows-in-notepad

[borifax]

Ok, but this method only works for duplicate lines in one file.
The ability to sort by color would solve the problem.

[sdottaka]

To sort with WinMerge, select the lines you want to sort and select Plugin-> Script-> SortAscending or SortDescending menu item.

A typical editor also has such a feature.

[borifax]

We don't understand each other. How can I select only the white lines from the right window?

[sdottaka]

I don't think I understand exactly what you want
but with the commit a553219, View-> Diff Context-> Invert A menu item has been added that allows you to see only the identical lines and select and delete only the identical lines.

[borifax]

I have two documents.

1. I compare them. WM finds the differences. But:
2. I need to delete from one of these documents all those rows which are defined as doubled with rows from the other document.

As I can see that the new feature you just added solves the problem.
Thank you.