Subtracting numbers in two different txt files

[Arjani]

I have two .txt files with a bunch of numbers in them, below each other, like this:

File 1:

3
4
5

File 2:

1
2
1


Now I want to subtract the numbers in file 2 from the numbers in file 1 and get the results in a new .txt file:

File 3:

2
2
4

Very simple. I was going to do it in Excel, but I don't have that right now. Does anyone know another easy way?

 

[Borek]

Use OpenOffice then. Or write Python script. Or post your problem giving enough information about OS and tools available to get a meaningful answer.

 

[NemoReally]

If you've got Windows, try VBScript. Read the 2 files into an array, add the elements of the arrays and write the results back out. Here's a link showing how to read and write files: http://easyprograming.com/index.php/vb-script/13-open-an-existing-text-file-in-vb-script

 

[MATLABdude]

You could download Open or Libre Office, or sign up for a GMail account and use the spreadsheet Google Docs application.