Colour Escapes

Colour escape sequences are useful for designing text user interfaces (TUI).

Layout of an colour escape sequence: echo -e "\033[<parameter><action>"

\033 enters escape mode and [ is called the command sequence introduction.

Several parameters-action pairs can be specified in a single escape sequence by separating them using semicolons.</li> </ul> </ul>

• Actions

  Action	Description
  h	Set ansi mode (no parameters)
  l	Clear ansi mode (no parameters)
  m	Colours
  q	Controls keyboard LEDs
  s	Stores position and attributes
  u	Restores position and attributes

• Parameters for action m

  Parameter	Description
  	Set defaults
  1	Bold
  2	Dim
  5	Blink
  7	Inverse video
  11	Display special control characters graphically (alt + numpad)
  25	No blink
  27	No inverse video
  30	Foreground colours is black
  31	Foreground colours is red
  32	Foreground colours is green
  33	Foreground colours is yellow
  34	Foreground colours is blue
  35	Foreground colours is magenta
  36	Foreground colours is cyan
  37	Foreground colours is white
  40	Background colours is black
  41	Background colours is red
  42	Background colours is green
  43	Background colours is yellow
  44	Background colours is blue
  45	Background colours is magenta
  46	Background colours is cyan
  47	Background colours is white

• Parameters for action q

  Parameter	Description
  	LEDs off
  1	Scroll lock on, others off
  2	Num lock on
  3	Caps lock on