Improving dig output #dns #dig #bash #shell

Improving dig output.md

Outcome

Implementation

# digg adds colors to the standard dig output to improve readability while not losing contextual information.
#
DIG_COMMENT_COLOR_SINGLE="\e[38;5;8m"  # Dark grey text, no background, no bold
DIG_COMMENT_COLOR_DOUBLE="\e[48;5;88m\e[1;37m" # Dark red background, bold white text
DIG_RESET_COLOR="\e[0m"
digg() {
	local domain="$1"
	local record="${2:-A}"
	local dig_output=$(dig "$domain" "$record")
	local question_section_found=0

	while IFS= read -r line; do
		if [[ "$line" == ";"* ]]; then
			if [[ "$line" == ";;"* ]]; then
				if [[ "$line" == *' SECTION:'* ]]; then
					if [[ "$line" == *'QUESTION SECTION:'* ]]; then
						question_section_found=1;
						echo ""
					fi
					echo -e "${DIG_COMMENT_COLOR_DOUBLE}${line#';;'} ${DIG_RESET_COLOR}"
				else
					echo -e "${DIG_COMMENT_COLOR_SINGLE}${line#';;'} ${DIG_RESET_COLOR}"
				fi
			else
				if [[ "$question_section_found" -eq 1 ]]; then
					echo "${line#';'}";
					question_section_found=0;
				else
					echo -e "${DIG_COMMENT_COLOR_SINGLE}${line#';'}${DIG_RESET_COLOR}"
				fi
			fi
		else
			echo "$line";
		fi
	done <<< "$dig_output"
}