Which of the following commands cannot be use to edit a file?
A. ed
B. vi
C. Edit
D. None of the above
查看答案
Which command will save the current file in ed?
A. w
B. save
C. s
D. q
In vi, which keys are used to move the cursor?
A. a, w, x, and d
B. h, j, k and l
C. a, b, c, and d
D. The arrow keys
In vi, which command is used to undo the last command?
A. u
B. z
C. Z
D. Ctrl + Z
In vi, which command is used to delete the current line?
A. dd
B. dl
Ctrl + Y
D. dline
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