How to Merge or Join Files Using DOS Command

Here's how you can merge or join splitted or separated volumes of a file or movie you downloaded:


Step 1: Create a new text file using notepad.

  
Step 2: Write this code on your text file: copy /b sourcefile1 + sourcefile2 destination. When we split a file into how many volumes, we are actually splitting it into binary files, and this is how we merge or join them. /b indicates binary file. Just copy the file names of the binary files and paste it putting a + sign between them. The destination would be the final output of the file with it's extension file.
Example: 

Step 3: Change the extension file into .bat then double click the file. A command prompt will show. It will automatically close after it finishes processing.


Another Option


If you don't want to use this method, you can download hjsplit at hjsplit.org


That's it! Enjoy!