Concatenating group of files

Question

Hi Guys,

I am trying to concatenate similar name files from three different folders. 
I have folder_1 with three files called a.jmp, b.jmp and c.jmp.

I have folder_2 with the same three file names.

I have folder_3 with the same three file names.

Now I want to concatenate a.jmp from folder_1 with a.jmp from folder_2 and a.jmp from folder_3. Similarly repeat this for b.jmp and c.jmp. I tried something like this:

unknown · Answer

Ok that worked,Thanks.

mjoner · Answer

Try using an = instead of << with the Open commands.  You'll still use the << with Concatenate.