Using vim editor please

7. Assume you are editing the main.cpp file. Write a vim command to replace all newline characters Mn with semicolons G). The result should be a file with a 8. Asume you are editing the main.h file. Write a vim command to append the contents of main.cpp to the end of the main h file. Do not assume you know the 9. Assume you are editing the main.h file. Write a vim command to change the case of every character, i.e, all lower-case characters become upper-case characters single line containing " characters where the newlines used to be. contents of the main