What software do you use to work with text?

Question

Notepad++

Hello, I need software that can perform the following task!
I have conditionally 2 text files
in 1 file line by line the following values ​​are specified:

1
2
3
4
5
6
7
8
9
10

In the second file

1
3
5
7
9
10

The goal is that the program should find the values ​​from the 1st file in 2
And it's better if it can tell which lines are not in the other file but are in the first

Answer 1

Install the Compare plugin in Notepad++.