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modes

There are three modes

  1. command mode
  2. insert mode
  3. last line mode

different keyword value means various effect

jump to the specioic content

G cursor jump to the last line of the file. number + G cursor jump to the specified line of the file. gg cursor jump to the first line of the file.

escape(ESC) alter the mode h j k l means different arrows

delete lines or characters

d$ delete the character from the cursor to the tail of the line. d0 delete the character from the cursor to the head of the line. d means delete the content and copy the content to clip number+dd delete multiple lines. x can delete a character.

duplicate the lines

y$ y0 yy the same function like delete, But this command means duplicate p paste the data on the next line J connect the cursor with the next line(pay attention that J is capital) u means discard the former command ctr+R redo the former command

:q! force quit and discard the chang. :wq store the change and quit the file :w filename store the current file to a new file :r filename read the content and write in the next line

:set nu display the line number :set nonu hide the line number