bash/ansi

#!/usr/bin/bash
# bash script to quickly find ansi escape sequences

echo "Starting sequence: either \\033[ or \\x1b[ or \\e["
echo ""
echo "Reset codes:"
echo " - \\033[0m -> reset style and colors"
echo " - \\033[38m -> reset foreground color"
echo " - \\033[48m -> reset background color"
echo ""

echo "16 color mode :"
color_names=("Black " "Red   " "Green " "Orange" "Blue  " "Purple" "Cyan  " "White ")
color_codes=(30 31 32 33 34 35 36 37)
echo "        Normal    Bold        Faint       Italics     Underlined  Background"
for i in {0..7}; do
	code=${color_codes[i]}
	start=${color_names[i]}
	for offset in {0,60}; do
		code=$((color_codes[i]+offset))
		bg=$((code+10))
		echo -n "$start"
		echo -en "  \033[${code}m"'\\033['"$code"'m'"\033[0m"
		echo -en "  \033[$code;1m"'\\033['"$code"';1m'"\033[0m"
		echo -en "  \033[$code;2m"'\\033['"$code"';2m'"\033[0m"
		echo -en "  \033[$code;3m"'\\033['"$code"';3m'"\033[0m"
		echo -en "  \033[$code;4m"'\\033['"$code"';4m'"\033[0m"
		echo -e "  \033[${bg}m"'\\033['"$bg"'m'"\033[0m"
		start="      "
	done
done

echo ""
echo "Styles :"

style_on=(  1  2  3  4  5  7  9 51 52 53)
style_off=(22 22 23 24 25  0 29 54 54 55)
echo "     Bold      Faint     Italics   Underline Blink     Inverse  Barred    Framed    Circle    Overline"
echo -n "On:  "
for i in {0..9}; do
	echo -en "\033[${style_on[i]}m"'\\033['"${style_on[i]}"'m'"\033[${style_off[i]}m  "
	if [ "$i" -lt 5 ]; then	echo -n " "; fi
	if [ "$i" -eq 6 ]; then echo -n " "; fi
done
echo ""
echo -n "Off: "
for i in {0..9}; do
	echo -en "\033[${style_on[i]}m"'\\033['"${style_off[i]}"'m'"\033[${style_off[i]}m  "
done
echo ""