Common commands for VI

J,k,h,l on, down, left, right; 0 (0) to the beginning of the line, $ to the end; I insertion of the cursor position, I at the beginning; A cursor is appended, and a line end is appended; o a row under the current line, O adds a row to the current line; R replaces the character at the cursor, and R starts at the cursor; s remove the character at the cursor and start inserting; X Delete the character at the cursor; DD deletes the line of the cursor; D0 Delete the content in front of the line where the cursor is located; d$ Delete the contents of the line following the cursor; G to the end of the file, numbers such as 3 to 3rd line; /str backwards to find the string str;. STR forward lookup string str; N,n backward, forward to continue the previous search; U cancel the last Operation Crtl+f page down, crtl+b page up; : Set number displays line numbers; : 0 to file header;: $ to end of file, with G; : 2,4 copy 4 to line 2nd to 4th of the block content copy to line 5th (note that the last is from 0 as the label, the same as): 2,4 del Delete the 2nd line to the 4th line block content; : 2,4 Move 1 moves the contents of line 2nd through 4th to line 2nd; : 4,8s/ab/cd/g replaces AB from line 4th to line 8th with CD; : 0, $s/cd/ab/g replace the CD in the entire file with AB; : Wq Write exit: Q. Do not save exit: Wq. Forced write exit, of course, must have appropriate permissions;