What happens after issuing the command vi without any additional parameters?
A. vi starts and loads the last file used and moves the cursor to the position where vi was when it last exited.
B. vi starts and requires the user to explicitly either create a new or load an existing file.
C. vi exits with an error message as it cannot be invoked without a file name to operate on.
D. vi starts in command mode and opens a new empty file.
E. vi starts and opens a new file which is filled with the content of the vi buffer if the buffer contains text.
題解
直接執行「vi」指令，將會先進入預設的一般指令模式，並且開啟一個沒有檔名的空檔案。