How much do you know about the copy command in Windows?

Both the graphical interface and the command line have their own advantages, such as using the command prompt in Windows to start programs and view various configurations, and in many cases are more convenient than the graphical interface. There are also many command lines that have been largely forgotten because the graphical interface was more powerful more often. Did you know that the copy command can be used to merge files, even files of different types? Look at an example of merging ASCII text with a binary image: