Rhcsa --- work on the third day

1、 summary vim Practical orders

Command mode ：

dd	Deletes the line where the cursor is located
d+enter	Delete the line where the cursor is located and the line below the cursor
dG	Delete the line where the cursor is located and all lines at the end of the document
dgg	Delete the line where the cursor is located and all lines at the beginning of the document
x	Delete the character in the line of the cursor

 

The input mode ：

a	Enter on the right side of the cursor
i	Enter at the cursor position
o	Enter at the beginning of the next line of the cursor

 

Last row mode ：

:w	preservation
:q	sign out
:wq	Save and exit

 

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3、vim practice

4、 The file to view

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