Vi editor delete commands

x - delete single character under cursor  
Nx  --delete N characters, starting with character under cursor  
dw - delete the single word beginning with character under cursor  
dNw - delete N words beginning with character under cursor;
  e.g., d5w deletes 5 words  
D - delete the remainder of the line, starting with current cursor position
dd delete entire current line
 Ndd or dNd - delete N lines, beginning with the current line;
  e.g., 5dd deletes 5 lines