esccolors

#!/bin/bash

#17
NAMES=(Default Black DarkRed DarkGreen DarkYellow DarkBlue DarkMagenta DarkCyan Gray DarkGray Red Green Yellow Blue Magenta Cyan White)
FGROUND=(39 30 31 32 33 34 35 36 37 90 91 92 93 94 95 96 97)
BGROUND=(49 40 41 42 43 44 45 46 47 100 101 102 103 104 105 106 107)
#Reset code \x1b[0m
#Attributes 0-Default; 1-bold; 4-understrike; 5-blinking; 7-inversing; 8-invisible

echoc() #Text, color, background, attributes
{
    if [ -z "$2" ];then
	echo "$1" 
	return 
    fi
    
    E__="\x1b[${FGROUND[$2]}m"
    if [ -n "$3" ];then
	E__="$E__\x1b[${BGROUND[$3]}m"
    fi
    if [ -n "$4" ];then
	E__="$E__\x1b[$4""m"
    fi
    
    echo -e "$E__$1\x1b[0m"
}

echocn() #Text, color, background, attributes
{
    if [ -z "$2" ];then
	echo  -n "$1" 
	return 
    fi
    
    E__="\x1b[${FGROUND[$2]}m"
    if [ -n "$3" ];then
	E__="$E__\x1b[${BGROUND[$3]}m"
    fi
    if [ -n "$4" ];then
	E__="$E__\x1b[$4""m"
    fi
    
    echo -e -n "$E__$1\x1b[0m"
}

echo -e "Foreground color:\tBackground color:"

for N in {0..16}; do
    if [ $N -eq 1 ];then #foreground
	echocn "$N - ${NAMES[$N]}" $N "16"
    else
	echocn "$N - ${NAMES[$N]}" $N
    fi
    echo -e -n "\t\t\t"
    
    if [ $N -gt 1 ];then
	echoc " ${NAMES[$N]} " 1 $N #background
    else
	echoc " ${NAMES[$N]} " 0 $N
    fi
done
echo
echocn "Bold" 0 0 1; echo -n " "
echocn "Understrike" 0 0 4; echo -n " "
echocn "Blinking" 0 0 5; echo -n " "
echocn "Inversing" 0 0 7; echo -n " "
echocn "Invisible" 0 0 8; echo -n " "
echo
echo