ANSI Escape Sequence

Clear Display

Function ESC Sequence Description 
Clear Screen ESC[2J Clear the whole screen and position the cursor to the top left corner. 
Clear Line ESC[K Clear line, from cursor position to the right most position of line. 

Cursor Movement

Function ESC Sequence Description 
Move Up ESC[numA Move the cursor up num positions 
Move Down ESC[numB Move the cursor down num positions 
Move Right ESC[numC Move the cursor right num positions 
Move Left ESC[numD Move the cursor left num positions 
Move to Position ESC[row;colH Move the cursor to the (col, row) position. Note that the row comes before column; that is, y comes before x. Either col or row can be omitted. Row and column both start with "1," not zero. (1, 1) corresponds to the top-left corner of the screen. 
Move to Position ESC[row;colf Same as above. 

Save and Restore Cursor Position

Function ESC Sequence Description 
Save Cursor Positon ESC[s Save the cursor position for later restoration. 
Restore Cursor Positon ESC[u Restore the cursor position previously saved. 

Character Mode

Function ESC Sequence Description 
Change Character Mode ESC[attrm Change the character mode with attribute attr. The attributes are numbers listed below. 
Change Character Mode ESC[attr;...;attrm Change the character mode with attributes attr;...;attr. The attributes are numbers listed below. 
All Off 0 All attributes turned off. (Except for foreground and background color). 
High Intensity 1 Bold. 
Low Intensity 2 Normal. 
Italic 3 Work only on some systems. 
Underline 4 Underline font. 
Blink 5 Blinking font. 
Rapid Blink 6 Works only on some systems. 
Reverse Video 7 Swapping the foreground color and the background color. 
Invisible 8 Do not display characters. 
Foreground Color 30 Black. 
Foreground Color 31 Red. 
Foreground Color 32 Green. 
Foreground Color 33 Yellow. 
Foreground Color 34 Blue. 
Foreground Color 35 Magenta. 
Foreground Color 36 Cyan. 
Foreground Color 37 White. 
Background Color 40 Black. 
Background Color 41 Red. 
Background Color 42 Green. 
Background Color 43 Yellow. 
Background Color 44 Blue. 
Background Color 45 Magenta. 
Background Color 46 Cyan. 
Background Color 47 White. 

thanks to Kenneth Kin Lum.