Questions 1. Assume you are editing the main.cpp file. Write a vim command to add the contents of 2. Assume you are editing the main.cpp file. Write a vim command to change the string 3. Assume you are editing the main.cpp file. Write a vim command to change every the main h file to the beginning of the main.cpp file. Do not assume you know the contents of the main h file. "Hello WOrld" to "hello world" in every line that begins with the character 's' in the file. occurence of the word "varA" to the word "var A/