diff --git a/.config/bash/module/pack.sh b/.config/bash/module/pack.sh
index f31d05f..19f60ff 100644
--- a/.config/bash/module/pack.sh
+++ b/.config/bash/module/pack.sh
@@ -18,15 +18,13 @@ function pack() {
 
 	# report no format.
 	if [[ "${format}" = "" ]]; then
-		echo "Could not determine output format."
+		_error "Could not determine output format."
 		help pack
 		return 2
 	fi
 
 	# All targets by default.
-	if [[ "${targets}" = "" ]]; then
-		targets=(*)
-	fi
+	[[ "${targets}" = "" ]] && targets=(*)
 
 	# process.
 	case "${format}" in
@@ -49,15 +47,12 @@ function pack() {
 			_pack_xz "${output}" "${targets[@]}"
 			;;
 		*)
-			echo -e "${color_bred}${target}: Format not supported.${color_default}"
-			return 1
+			_error "${target}: Format not supported."
+			return 2
 			;;
 	esac
 
-	# Show error.
-	if [[ $? != 0 ]]; then
-		echo -e "${color_bred}${target}: Failed.${color_default}"
-	fi
+	_iterate_targets process ${targets[@]}
 }
 
 # Attempt to unpack.
@@ -65,28 +60,10 @@ function pack() {
 # Usage: unpack [FILES]
 function unpack() {
 	local IFS=$'\n'
-	local targets=("${@}")
-	local count=0
-	local total=${#targets[@]}
-	local failed=0
-
-	# All targets by default.
-	if [[ "${targets}" = "" ]]; then
-		targets=($(ls | grep -E ${_unpack_supported}))
-		total=${#targets[@]}
-	fi
-
-	# process all files.
-	for target in "${targets[@]}"; do
-		# increment counter.
-		((count++))
-
-		# prepare status.
-		local status="[${count}/${total}] ${target}"
-
-		# show status.
-		echo -e "${status}"
+	local targets=(${@})
+	[[ "${targets}" = "" ]] && targets=($(_ls_files | grep -E ${_unpack_supported}))
 
+	process() {
 		# unpack file type.
 		local type="${target##*.}"
 
@@ -123,23 +100,13 @@ function unpack() {
 				_unpack_gz "${target}"
 				;;
 			*)
-				echo -e "${color_bred}${target}: Format not supported.${color_default}"
-				((failed++))
-				continue
+				_error "${target}: Format not supported."
+				return 2
 				;;
 		esac
+	}
 
-		# actions on error.
-		if [[ $? != 0 ]]; then
-			echo -e "${color_bred}${target}: Failed.${color_default}"
-			((failed++))
-		fi
-	done
-
-	if [[ ${failed} != 0 ]]; then
-		echo -e "${color_bred}Failed: ${failed}.${color_default}"
-		false
-	fi
+	_iterate_targets process ${targets[@]}
 }
 
 function _pack_zip() {