ANSI Escape Code¶
format
\033[<fg/bg>;<color-format>;<color>m<text-to-display>\033[0m
- fg/bg
- fg -> 38
- bg -> 48
- color-format
- 8-bit -> 5
- 24-bit -> 2
- color
- 8-bit -> 0-255
- 24-bit -> 0-255;0-255;0-255
- m = end of sequence
- \033[0m = normal style, s.t. your style won't extend indifinitely
e.g.
simple coloring
- 
e.g.
\033[93mpp\033[0m → yellow(pp)
\033[4m → underline
in python
print('')
in linux
echo -e ''
all 3 can
- \e
- python can't
- \033
- \x1B
Explanation:
- echo -e
- The -e option means that escaped (backslashed) strings will be interpreted
- \033
- escaped sequence represents beginning/ending of the style
- m
- indicates the end of the sequence
- 1
- Bold attribute (see below for more)
- [0m
- resets all attributes, colors, formatting, etc.
The possible integers - 0 - Normal Style - 1 - Bold - 2 - Dim - 3 - Italic - 4 - Underlined - 5 - Blinking - 7 - Reverse - 8 - Invisible
38 is the xterm-256 extended foreground color code; 30-37 are simply 16-color foreground codes (with a brightness controlled by escape code 1 on some systems and the arguably-supported 90-97 non-standard 'bright' codes) that are supported by all vt100/xterm-compliant colored terminals. The ;2 and ;5 indicate the format of the color, ultimately telling the terminal how many more sequences to pull: ;5 specifying an 8-bit format (as Blue Ice mentioned) requiring only 1 more control segment, and ;2 specifying a full 24-bit RGB format requiring 3 control segments
linux don't support italic & bold
ref
https://stackoverflow.com/questions/2924697/how-does-one-output-bold-text-in-bash
https://gist.github.com/RobinMalfait/7881398
https://stackoverflow.com/a/26665998/15493213 how to rgb