Is it possible to change lines in a text file through a bat file?

Question

cmd/bat

You need to add the same value to several files, while deleting the old ones and replacing them with new ones. But in each file, the desired value is located in different lines, and in some of them there are others before the desired value that must be left.

Answer 1

In a bat file, you can run any external program, for example, some sed that solves such a problem remarkably, and can be found under win.
You can also write some script in python or php, or another language, and run it from bat. =)

Answer 2

You can also use a naked batch file, without third-party tools, but with some restrictions.
But it's easier, as Boris Syomov said, to use specially designed utilities like sed for this.

Answer 3

You take some programming language known to you (did you probably study something at school? Not Scratch ...), for example, Pascal, write the simplest program in it that implements all your Wishlist. Moreover, the length of the program will hardly be more than 25..50 lines. You compile. You launch from a batch file. Rejoice.