How do you edit existing text (and move the cursor around) in the terminal?

Finally found that “demo”:

• https://github.com/asyncly/cdir/blob/223fe0039fade4fad2bb08c2f7affac3bdcf2f89/cdir.js#L24

• http://tldp.org/HOWTO/Bash-Prompt-HOWTO/x361.html

• http://ascii-table.com/ansi-escape-sequences-vt-100.php

• Position the Cursor: \u001b[<L>;<C>H or \u001b[<L>;<C>f (puts the cursor at line L and column C)

• Move the cursor up N lines: \u001b[<N>A

• Move the cursor down N lines: \u001b[<N>B

• Move the cursor forward N columns: \u001b[<N>C

• Move the cursor backward N columns: \u001b[<N>D

• Clear the screen, move to (0,0): \u001b[2J

• Erase to end of line: \u001b[K

• Save cursor position: \u001b[s

• Restore cursor position: \u001b[u