diff --git a/buildpkg b/buildpkg
index 3cd8ba4..f90acdc 100755
--- a/buildpkg
+++ b/buildpkg
@@ -4,52 +4,80 @@ export LC_ALL=C
 	
 . /usr/share/scratchpkg/functions || exit 1
 
+source_check() {
+	
+	url_stat=0
+	
+	for sources in ${source[@]}; do
+		if [ $(echo $sources | grep -E "(ftp|http|https)://") ]; then
+			if [ $(echo $sources | grep -E "::(ftp|http|https)://") ]; then
+				uri=$(echo "$sources" | awk -F '::' '{print $2}')
+			else
+				uri="$sources"
+			fi
+		fi
+		echo -ne "Checking $uri ... "
+		wget --spider -q "$uri"
+		if [ $? = 0 ]; then
+			echo -e ${GREEN}OK${CRESET}
+		else
+			url_stat=$?
+			echo -e ${RED}FAILED${CRESET}
+		fi
+	done
+	
+	return ${url_stat}
+	
+}
+
 updatemdsum() {
 	
-	if [ ! -z $source ]; then
-		for um in $(seq 0 $((${#source[@]} - 1))); do
-			if [ $(echo ${source[$um]} | grep -E "(ftp|http|https)://") ]; then
-				if [ $(echo ${source[$um]} | grep -E "::(ftp|http|https)://") ]; then
-					sourcename="$SOURCE_DIR/$(echo ${source[$um]} | awk -F '::' '{print $1}')"
-				else
-					sourcename="$SOURCE_DIR/$(echo ${source[$um]} | rev | cut -d / -f 1 | rev)"
-				fi
-			else
-				sourcename="${source[$um]}"
-			fi
-			needupdatechecksum="$needupdatechecksum $sourcename"
-		done
-		
-		for file in ${needupdatechecksum[@]}; do
-			if [ ! -f $file ]; then
-				missingsource+=($file)
-			fi
-		done
-		
-		if [ "${#missingsource[@]}" -gt 0 ]; then
-			msg "Missing source:"
-			for ms in ${missingsource[@]}; do
-				msg2 "$ms"
-			done
-			exitscript1
-		fi
-		
-		md5sum $needupdatechecksum | awk '{ print $1 }' > .md5sum
-		[ -f .md5sum ] && msg "md5sum updated."
-	else
-		echo "" > .md5sum
+	if [ -z $source ]; then
+		msgwarn "source=() is empty, no need md5sum."
+		return 0
 	fi
+		
+	for um in $(seq 0 $((${#source[@]} - 1))); do
+		if [ $(echo ${source[$um]} | grep -E "(ftp|http|https)://") ]; then
+			if [ $(echo ${source[$um]} | grep -E "::(ftp|http|https)://") ]; then
+				sourcename="$SOURCE_DIR/$(echo ${source[$um]} | awk -F '::' '{print $1}')"
+			else
+				sourcename="$SOURCE_DIR/$(echo ${source[$um]} | rev | cut -d / -f 1 | rev)"
+			fi
+		else
+			sourcename="${source[$um]}"
+		fi
+		needupdatechecksum="$needupdatechecksum $sourcename"
+	done
+	
+	for file in ${needupdatechecksum[@]}; do
+		if [ ! -f $file ]; then
+			missingsource+=($file)
+		fi
+	done
+	
+	if [ "${#missingsource[@]}" -gt 0 ]; then
+		msg "Missing source:"
+		for ms in ${missingsource[@]}; do
+			msg2 "$ms"
+		done
+		return 1
+	fi
+	
+	echo -e "md5sum=($(md5sum $needupdatechecksum | awk '{ print $1 }'))"
+		
 }
 
 checkmdsum() {
 	
-	for i in $(cat .md5sum); do
-		mdsums+=($i)
-	done
+	if [ -z $md5sum ]; then
+		msgwarn "md5sum is empty, please provide it."
+		return 0
+	fi
 	
-	if [ "${#source[@]}" != "${#mdsums[@]}" ]; then
+	if [ "${#source[@]}" != "${#md5sum[@]}" ]; then
 		msgerr "Total source and md5sums different."
-		exitscript1
+		return 1
 	fi
 	
 	for s in $(seq 0 $((${#source[@]} - 1))); do
@@ -63,7 +91,7 @@ checkmdsum() {
 			sourcename="${source[$s]}"
 		fi
 		sum=$(md5sum "$sourcename" | awk '{ print $1 }')
-		if [ "$sum" != "${mdsums[$s]}" ] && [ "SKIP" != "${mdsums[$s]}" ]; then
+		if [ "$sum" != "${md5sum[$s]}" ] && [ "SKIP" != "${md5sum[$s]}" ]; then
 			errormdsum+=($sourcename)
 		fi
 	done
@@ -73,7 +101,7 @@ checkmdsum() {
 		for mismatch in ${errormdsum[@]}; do
 			msg2 "$mismatch"
 		done
-		exitscript1
+		return 1
 	fi
 	
 }
@@ -107,14 +135,14 @@ downloadsource(){
 			fi
 		fi
 		if [ -f $SOURCE_DIR/$tarballname ]; then
-			msg "Source file ${color_green}$tarballname${color_reset} found."
+			msg "Source file ${GREEN}$tarballname${CRESET} found."
 		else
 			checktool wget
 			if [ -f $SOURCE_DIR/$tarballname.partial ]; then
-				msg "Resuming ${color_green}$1${color_reset}."
+				msg "Resuming ${GREEN}$1${CRESET}."
 				$WGETRESUME $tarballurl && mv $SOURCE_DIR/$tarballname.partial $SOURCE_DIR/$tarballname || exitscript1
 			else
-				msg "Downloading ${color_green}$1${color_reset}."
+				msg "Downloading ${GREEN}$1${CRESET}."
 				$WGETCMD $tarballurl && mv $SOURCE_DIR/$tarballname.partial $SOURCE_DIR/$tarballname || exitscript1
 			fi
 		fi
@@ -143,7 +171,7 @@ preparesource() {
 					for i in ${noextract[@]}; do
 						if [ "$i" = "$tarballname" ]; then
 							NO_EXTRACT=yes
-							msg "Preparing ${color_green}$tarballname${color_reset}..." && cp $SOURCE_DIR/$tarballname $SRC || ERROR_PREPARE_SOURCE+=($tarballname)
+							msg "Preparing ${GREEN}$tarballname${CRESET}..." && cp $SOURCE_DIR/$tarballname $SRC || ERROR_PREPARE_SOURCE+=($tarballname)
 							break
 						fi
 					done
@@ -157,17 +185,17 @@ preparesource() {
 									MODE="Preparing" ;;				
 							esac
 							
-							msg2 "$MODE ${color_green}$tarballname${color_reset}..."
+							msg2 "$MODE ${GREEN}$tarballname${CRESET}..."
 							$COMMAND
 							
 							if [ $? != 0 ]; then
-								msgerr "$MODE ${color_red}$tarballname${color_reset} failed."
+								msgerr "$MODE ${RED}$tarballname${CRESET} failed."
 								clearworkdir
 								exitscript1
 							fi						
 						fi
 			else
-				msg2 "Preparing ${color_green}$sources${color_reset}..." && cp $sources $SRC || ERROR_PREPARE_SOURCE+=($sources)
+				msg2 "Preparing ${GREEN}$sources${CRESET}..." && cp $sources $SRC || ERROR_PREPARE_SOURCE+=($sources)
 			fi
 		done
 	fi
@@ -195,18 +223,18 @@ loadspkgbuild() {
 
 buildpackage() {
 	
-	msg "Start build ${color_green}$name-$version-$release${color_reset}."
+	msg "Start build ${GREEN}$name-$version-$release${CRESET}."
 	
 	pushd $SRC
 	
 	(exec &> >(tee -i $LOG_DIR/$name.log); echo "$name-$version"; echo $(date); set -e -x; build)
 		
 		if [ $? != 0 ]; then
-			msgerr "Build ${color_red}$PKGNAME${color_reset} failed."	
+			msgerr "Build ${RED}$PKGNAME${CRESET} failed."	
 			clearworkdir
 			exitscript1
 		else
-			msg "Successfully build ${color_green}$name-$version-$release${color_reset}."
+			msg "Successfully build ${GREEN}$name-$version-$release${CRESET}."
 		fi
 	
 	popd
@@ -262,7 +290,7 @@ packaging() {
 	[ -n "$makedepends" ] && for md in ${makedepends[@]}; do echo "makedepends = $md" >> .pkginfo; done
 	[ -n "$noextract" ] && echo "noextract = $noextract" >> .pkginfo
 	
-	msg "Packaging ${color_green}$name-$version-$release${color_reset}..."
+	msg "Packaging ${GREEN}$name-$version-$release${CRESET}..."
 	
 	for file in .pkginstall .pkgreadme; do
 		if [ -f $file ]; then
@@ -272,7 +300,7 @@ packaging() {
 	tar -c -J -p -f $PACKAGE_DIR/$PKGNAME * .pkginfo "${addtotar[@]}"
 	
 	if [ $? != 0 ]; then
-		msgerr "Packaging ${color_red}$PKGNAME${color_reset} failed."
+		msgerr "Packaging ${RED}$PKGNAME${CRESET} failed."
 		if [ -f $PACKAGE_DIR/$PKGNAME ]; then
 			rm $PACKAGE_DIR/$PKGNAME
 		fi
@@ -280,12 +308,12 @@ packaging() {
 	else
 		pkgsize="$(ls -lh $PACKAGE_DIR/$PKGNAME | awk '{print $5}')"
 		$EXTPROG -t -v -f $PACKAGE_DIR/$PKGNAME
-		msg "Successfully create package ${color_green}$PKGNAME${color_reset}. (${pkgsize})"
+		msg "Successfully create package ${GREEN}$PKGNAME${CRESET}. (${pkgsize})"
 	fi
 	
 	case $PREINSTALL_STATUS in
-		OK) msg "preinstall	: ${color_green}OK${color_reset}" ;;
-		KO) msg "preinstall	: ${color_red}FAIL${color_reset}" ;;
+		OK) msg "preinstall	: ${GREEN}OK${CRESET}" ;;
+		KO) msg "preinstall	: ${RED}FAIL${CRESET}" ;;
 	esac
 	
 	popd
@@ -300,11 +328,7 @@ buildpkg() {
 	getsource
 	
 	if [ ! "$IGNORE_MDSUM" ]; then
-		if [ -f .md5sum ]; then
-			checkmdsum
-		else
-			updatemdsum
-		fi
+		checkmdsum || exitscript1
 	fi
 	preparesource
 	
@@ -368,7 +392,7 @@ checkdeps() {
 			msg2 "$msd"
 		done
 		for msmkd in ${MSMKDEP[@]}; do
-			msg2 "$msmkd ${color_cyan}(make)${color_reset}"
+			msg2 "$msmkd ${CYAN}(make)${CRESET}"
 		done
 		exitscript1
 	fi
@@ -464,7 +488,7 @@ clearworkdir() {
 
 interrupted() {
 	#echo ""
-	#msg "${color_yellow}Interrupted!${color_reset}"
+	#msg "${YELLOW}Interrupted!${CRESET}"
 	clearworkdir
 	exitscript1
 }
@@ -492,11 +516,12 @@ Options:
   -fr, --force-rebuild       rebuild package
   -im, --ignore-mdsum        skip md5sum checking
   -um, --update-mdsum        update md5sum
-  -cm, --check-mdsum         check md5sum for source file
+  -cm, --check-mdsum         calculate and print md5sum for source file
   -do, --download-only       download only source file
   -eo, --extract-only        extract only source file
   -kw, --keep-work           keep working directory
   -rd, --redownload          re-download source file
+  -cs, --check-source        check dead url for sources
   -sd, --source-dir <path>   override directory path for sources
   -pd, --package-dir <path>  override directory path for compiled package
   -h,  --help                show this help message
@@ -536,6 +561,7 @@ parse_options() {
 		-eo |      --extract-only) EXTRACT_ONLY=yes                ;;
 		-kw |         --keep-work) KEEP_WORK=yes                   ;;
 		-rd |        --redownload) REDOWNLOAD_SOURCE=yes           ;;
+		-cs |      --check-source) SOURCE_CHECK=yes                ;;
 		-h  |              --help) SHOWHELP=yes                    ;;
 		-sd |        --source-dir) testinput "$2" && SOURCE_DIR="$2"  || exit 1; shift ;;
 		-pd |       --package-dir) testinput "$2" && PACKAGE_DIR="$2" || exit 1; shift ;;
@@ -561,18 +587,25 @@ main() {
 		exit 0
 	fi
 	
-	#check_directory
+	# source spkgbuild
+	loadspkgbuild
+	
+	# show help page
+	if [ "$SOURCE_CHECK" ]; then
+		source_check || exit $?
+		exit 0
+	fi
+	
+	# check required directory
 	checkdirexist "$WORK_DIR" "$SOURCE_DIR" "$PACKAGE_DIR" "$LOG_DIR"
 	checkdirwrite "$WORK_DIR" "$SOURCE_DIR" "$PACKAGE_DIR" "$LOG_DIR"
-	checkdirread "$WORK_DIR" "$SOURCE_DIR" "$PACKAGE_DIR" "$LOG_DIR"
-	
-	loadspkgbuild
+	checkdirread  "$WORK_DIR" "$SOURCE_DIR" "$PACKAGE_DIR" "$LOG_DIR"
 	
 	if [ "$INSTALL_PKG" ] || [ "$UPGRADE_PKG" ] || [ "$REINSTALL_PKG" ]; then
 		NO_ORPHAN_CHECK=yes
 	fi
 	
-	### CHECK SPKGBUILD ###
+	# check the required field in spkgbuild
 	if [ -z "$name" ]; then
 		msgerr "'name' is empty!"
 		exit 1
@@ -592,37 +625,36 @@ main() {
 	
 	PKGNAME="$name-$version-$release.spkg.txz"
 	
-	### UPDATE CHECKSUM ###
+	# calculate & print md5sum
 	if [ "$UPDATE_MDSUM" ]; then
-		getsource
 		updatemdsum
 		exit 0
 	fi
 	
-	### CHECK FOR LOCK FILE ###
+	# check for lock file
 	if [ -f /tmp/spkg.$name.lock ]; then
 		msgerr "Cant build same package simultaneously."
-		msgerr "remove ${color_yellow}/tmp/spkg.$name.lock${color_reset} if no build process for ${color_yellow}$name.${color_reset}"
+		msgerr "remove ${YELLOW}/tmp/spkg.$name.lock${CRESET} if no build process for ${YELLOW}$name.${CRESET}"
 		exit 1
 	fi
 	
-	### DOWNLOAD ONLY ###
+	# download source only
 	if [ "$DOWNLOAD_ONLY" ]; then
 		getsource
 		exit 0
 	fi
 	
-	### EXTRACT ONLY ###
+	# extract source only
 	if [ "$EXTRACT_ONLY" ]; then
 		getsource
 		preparesource
 		exit 0
 	fi
 	
-	### BUILD ###
+	# build package
 	if [ -f $PACKAGE_DIR/$PKGNAME ] && [ ! "$FORCE_REBUILD" ]; then # if package txz exist and not force rebuild
 		if [ ! "$INSTALL_PKG" ] && [ ! "$REINSTALL_PKG" ] && [ ! "$UPGRADE_PKG" ]; then
-			msg "${color_green}$PKGNAME${color_reset} is up-to-date."
+			msg "${GREEN}$PKGNAME${CRESET} is up-to-date."
 			exitscript0
 		fi
 	else
@@ -640,7 +672,7 @@ main() {
 		fi
 	fi
 	
-	### INSTALL PACKAGE ###
+	# install package
 	if [ "$INSTALL_PKG" ] || [ "$REINSTALL_PKG" ] || [ "$UPGRADE_PKG" ]; then
 		installpkg $PACKAGE_DIR/$PKGNAME ${OPTS[@]} || exitscript1
 	fi
diff --git a/functions/color b/functions/color
index c242f94..a1bff49 100644
--- a/functions/color
+++ b/functions/color
@@ -1,38 +1,38 @@
 #!/bin/bash
 
 ### SET COLOUR CODE ###
-color_red='\e[0;31m'      #Red
-color_green='\e[0;32m'    #Green
-color_yellow='\e[0;33m'   #Yellow
-color_blue='\e[0;34m'     #Blue
-color_purple='\e[0;35m'   #Purple
-color_cyan='\e[0;36m'     #Cyan
-color_gray='\e[0;37m'     #Gray
-color_bred='\e[1;31m'     #Bold red
-color_bgreen='\e[1;32m'   #Bold green
-color_byellow='\e[1;33m'  #Bold yellow
-color_bblue='\e[1;34m'    #Bold blue
-color_bpurple='\e[1;35m'  #Bold purple
-color_bcyan='\e[1;36m'    #Bold cyan
-color_bgray='\e[1;37m'    #Bold gray
-color_reset='\e[0m' 	  #Reset color
+RED='\e[0;31m'      #Red
+GREEN='\e[0;32m'    #Green
+YELLOW='\e[0;33m'   #Yellow
+BLUE='\e[0;34m'     #Blue
+PURPLE='\e[0;35m'   #Purple
+CYAN='\e[0;36m'     #Cyan
+GRAY='\e[0;37m'     #Gray
+BRED='\e[1;31m'     #Bold red
+BGREEN='\e[1;32m'   #Bold green
+BYELLOW='\e[1;33m'  #Bold yellow
+BBLUE='\e[1;34m'    #Bold blue
+BPURPLE='\e[1;35m'  #Bold purple
+BCYAN='\e[1;36m'    #Bold cyan
+BGRAY='\e[1;37m'    #Bold gray
+CRESET='\e[0m'		#Reset color
 
 nocolor() {
 	
-	color_red=''
-	color_green=''
-	color_yellow=''
-	color_blue=''
-	color_purple=''
-	color_cyan=''
-	color_gray=''
-	color_bred=''
-	color_bgreen=''
-	color_byellow=''
-	color_bblue=''
-	color_bpurple=''
-	color_bcyan=''
-	color_bgray=''
-	color_reset=''
+	RED=''
+	GREEN=''
+	YELLOW=''
+	BLUE=''
+	PURPLE=''
+	CYAN=''
+	GRAY=''
+	BRED=''
+	BGREEN=''
+	BYELLOW=''
+	BBLUE=''
+	BPURPLE=''
+	BCYAN=''
+	BGRAY=''
+	CRESET=''
 
 }
diff --git a/functions/functions b/functions/functions
index 100e199..fa1f8b7 100644
--- a/functions/functions
+++ b/functions/functions
@@ -6,7 +6,7 @@ source "$FUNCTIONS/options"
 source "$FUNCTIONS/color"
 source "$FUNCTIONS/message"
 
-### SET SOME VALUE ###
+# defaults value
 CONF_FILE="/etc/scratchpkg.conf"
 BUILD_SCRIPT="spkgbuild"
 
@@ -32,15 +32,18 @@ else
 	exit 1
 fi
 	
-### SET BSDTAR FOR EXTRACT PROGRAM IF LIBARCHIVE IS INSTALLED ###
-if [ "$(type -pa bsdtar)" ]; then
-	EXTPROG=bsdtar
+# check for extract tool
+if [ "$(type -p bsdtar)" ]; then
+	EXTPROG=$(type -p bsdtar)
+elif [ "$(type -p tar)" ]; then
+	EXTPROG=$(type -p tar)
 else
-	EXTPROG=tar
+	msgerr "libarchive or tar is needed. Aborted"
+	exit 1
 fi
 
 
-### FUNCTIONS LOAD BY SCRATCHPKG ###
+# functions load by scratchpkg
 pushd() {
     command pushd "$@" >/dev/null
 }
@@ -83,13 +86,14 @@ needroot() {
 
 checktool() {
 	
-	if ! type -pa $1 &>/dev/null; then
+	if ! type -p $1 &>/dev/null; then
 		msgerr "$1 not exist in your system!"
 		exit 1
 	fi
 	
 }
 
+# function to print all installed packages
 allinstalled() {
 	
 	ls ${INDEX_DIR}/*/.pkginfo | rev | cut -d '/' -f2 | rev 2>/dev/null
@@ -98,13 +102,13 @@ allinstalled() {
 
 getpkginfo() {
 	
-	description=$(cat $BUILD_SCRIPT | grep ^'# description' | sed 's/\://' | cut -d ' ' -f 3-)
-	backup=$(cat $BUILD_SCRIPT | grep ^'# backup' | sed 's/\://' | cut -d ' ' -f 3-)
-	conflict=$(cat $BUILD_SCRIPT | grep ^'# conflict' | sed 's/\://' | cut -d ' ' -f 3-)
-	depends=$(cat $BUILD_SCRIPT | grep ^'# depends' | sed 's/\://' | cut -d ' ' -f 3-)
-	makedepends=$(cat $BUILD_SCRIPT | grep ^'# makedepends' | sed 's/\://' | cut -d ' ' -f 3-)
-	noextract=$(cat $BUILD_SCRIPT | grep ^'# noextract' | sed 's/\://' | cut -d ' ' -f 3-)
-	options=$(cat $BUILD_SCRIPT | grep ^'# options' | sed 's/\://' | cut -d ' ' -f 3-)
+	description=$(grep "^# description[[:blank:]]*:" $BUILD_SCRIPT | sed 's/^# description[[:blank:]]*:[[:blank:]]*//')
+	backup=$(grep "^# backup[[:blank:]]*:" $BUILD_SCRIPT | sed 's/^# backup[[:blank:]]*:[[:blank:]]*//')
+	conflict=$(grep "^# conflict[[:blank:]]*:" $BUILD_SCRIPT | sed 's/^# conflict[[:blank:]]*:[[:blank:]]*//')
+	depends=$(grep "^# depends[[:blank:]]*:" $BUILD_SCRIPT | sed 's/^# depends[[:blank:]]*:[[:blank:]]*//')
+	makedepends=$(grep "^# makedepends[[:blank:]]*:" $BUILD_SCRIPT | sed 's/^# makedepends[[:blank:]]*:[[:blank:]]*//')
+	noextract=$(grep "^# noextract[[:blank:]]*:" $BUILD_SCRIPT | sed 's/^# noextract[[:blank:]]*:[[:blank:]]*//')
+	options=$(grep "^# options[[:blank:]]*:" $BUILD_SCRIPT | sed 's/^# options[[:blank:]]*:[[:blank:]]*//')
 	
 	. $BUILD_SCRIPT
 		
@@ -150,7 +154,6 @@ installed_pkg_info() {
 
 getinfopkg() {
 	
-	#echo $(tar xf $2 .pkginfo -O | grep ^$1 | cut -d " " -f3)
 	cat /tmp/spkg.$2.pkginfo | grep ^$1 | cut -d " " -f3
 	
 }
@@ -170,7 +173,7 @@ vercomp() {
 createtemplate() {
 	
 	if [ -d $1 ]; then
-		msg "Error directory ${color_red}$1${color_reset} already exist"
+		msg "Error directory ${RED}$1${CRESET} already exist"
 		exit 1
 	else
 		mkdir $1
@@ -186,6 +189,7 @@ version=
 release=1
 options=()
 source=()
+md5sum=()
 
 build() {
 	cd \$name-\$version
@@ -193,7 +197,7 @@ build() {
 	make
 	make DESTDIR=\$PKG install
 }" > $1/$BUILD_SCRIPT
-	msg "Template port have created for ${color_green}$1${color_reset}."
+	msg "Template port have created for ${GREEN}$1${CRESET}."
 	fi
 	
 }
@@ -202,7 +206,7 @@ checkdirexist() {
 	
 	for dir in "$@"; do
 		if [ ! -d $dir ]; then
-			msgwarn "Directory ${color_yellow}$dir${color_reset} not exist."
+			msgwarn "Directory ${YELLOW}$dir${CRESET} not exist."
 			DIR_ERROR=yes
 		fi
 	done
@@ -215,7 +219,7 @@ checkdirwrite() {
 	
 	for dir in "$@"; do
 		if [ ! -w $dir ]; then
-			msgwarn "Directory ${color_yellow}$dir${color_reset} not writable."
+			msgwarn "Directory ${YELLOW}$dir${CRESET} not writable."
 			DIR_ERROR=yes
 		fi
 	done
@@ -228,7 +232,7 @@ checkdirread() {
 	
 	for dir in "$@"; do
 		if [ ! -x $dir ] || [ ! -r $1 ]; then
-			msgwarn "Directory ${color_yellow}$dir${color_reset} not readable."
+			msgwarn "Directory ${YELLOW}$dir${CRESET} not readable."
 			DIR_ERROR=yes
 		fi
 	done
diff --git a/functions/message b/functions/message
index b1ce9d3..249ac42 100644
--- a/functions/message
+++ b/functions/message
@@ -1,23 +1,23 @@
 #!/bin/bash
 
 msg() {
-	echo -e "${color_green}==>${color_reset} $1"
+	echo -e "${GREEN}==>${CRESET} $1"
 }
 
 msginfo() {
-	echo -e "${color_cyan}==> INFO:${color_reset} $1"
+	echo -e "${CYAN}==> INFO:${CRESET} $1"
 }
 
 msgerr() {
-	echo -e "${color_red}==> ERROR:${color_reset} $1"
+	echo -e "${RED}==> ERROR:${CRESET} $1"
 }
 
 msgwarn() {
-	echo -e "${color_yellow}==> WARNING:${color_reset} $1"
+	echo -e "${YELLOW}==> WARNING:${CRESET} $1"
 }
 
 msg2() {
-	echo -e "${color_blue}  ->${color_reset} $1"
+	echo -e "${BLUE}  ->${CRESET} $1"
 }
 
 msg3() {
diff --git a/installpkg b/installpkg
index b4077d5..c74685c 100755
--- a/installpkg
+++ b/installpkg
@@ -21,7 +21,7 @@ installpkg() {
 		checkdeps
 	fi
 	
-	msg "Installing ${color_green}$name-$version-$release${color_reset}..."
+	msg "Installing ${GREEN}$name-$version-$release${CRESET}..."
 	
 	# noextract file into system
 	for noextr in ${NO_EXTRACT[@]}; do
@@ -65,21 +65,15 @@ installpkg() {
 	fi
 	
 	#installing package into system
-	if [[ $(tar -tf "$PKGNAME") ]]; then
-		msg2 "Extracting package..."
-		if [ "$VERBOSE_INSTALL" ]; then
-			tar --keep-directory-symlink --no-overwrite-dir -p -x -v -f $PKGNAME -C $ROOT_DIR --exclude=.pkginfo --exclude=.pkginstall --exclude=.pkgreadme ${excludefile[@]}
-		else
-			tar --keep-directory-symlink --no-overwrite-dir -p -x -f $PKGNAME -C $ROOT_DIR --exclude=.pkginfo --exclude=.pkginstall --exclude=.pkgreadme ${excludefile[@]}
-		fi
+	msg2 "Extracting package..."
+	if [ "$VERBOSE_INSTALL" ]; then
+		tar --keep-directory-symlink --no-overwrite-dir -p -x -v -f $PKGNAME -C $ROOT_DIR --exclude=.pkginfo --exclude=.pkginstall --exclude=.pkgreadme ${excludefile[@]}
 	else
-		msgerr "Package is corrupted. Aborted!"
-		spkglock
-		exit 1
+		tar --keep-directory-symlink --no-overwrite-dir -p -x -f $PKGNAME -C $ROOT_DIR --exclude=.pkginfo --exclude=.pkginstall --exclude=.pkgreadme ${excludefile[@]}
 	fi
 	
 	if [ $? != 0 ]; then
-		msgerr "Failed install ${color_red}$name-$version-$release${color_reset}."
+		msgerr "Failed install ${RED}$name-$version-$release${CRESET}."
 			while IFS=' ' read -r line; do
 				pushd $ROOT_DIR
 						rm_silent "$line" || rmdir_silent --ignore-fail-on-non-empty "$line"
@@ -106,29 +100,29 @@ installpkg() {
 	restoreconf
 	
 	case $PREINSTALL_STATUS in
-		OK) msg "preinstall	: ${color_green}OK${color_reset}" ;;
-		KO) msg "preinstall	: ${color_red}FAIL${color_reset}" ;;
+		OK) msg "preinstall	: ${GREEN}OK${CRESET}" ;;
+		KO) msg "preinstall	: ${RED}FAIL${CRESET}" ;;
 	esac
 	
 	case $PREUPGRADE_STATUS in
-		OK) msg "preupgrade	: ${color_green}OK${color_reset}" ;;
-		KO) msg "preupgrade	: ${color_red}FAIL${color_reset}" ;;
+		OK) msg "preupgrade	: ${GREEN}OK${CRESET}" ;;
+		KO) msg "preupgrade	: ${RED}FAIL${CRESET}" ;;
 	esac
 	
 	case $POSTINSTALL_STATUS in
-		OK) msg "postinstall	: ${color_green}OK${color_reset}" ;;
-		KO) msg "postinstall	: ${color_red}FAIL${color_reset}" ;;
+		OK) msg "postinstall	: ${GREEN}OK${CRESET}" ;;
+		KO) msg "postinstall	: ${RED}FAIL${CRESET}" ;;
 	esac
 	
 	case $POSTUPGRADE_STATUS in
-		OK) msg "postupgrade	: ${color_green}OK${color_reset}" ;;
-		KO) msg "postupgrade	: ${color_red}FAIL${color_reset}" ;;
+		OK) msg "postupgrade	: ${GREEN}OK${CRESET}" ;;
+		KO) msg "postupgrade	: ${RED}FAIL${CRESET}" ;;
 	esac
 	
 	runhooks
 	
 	if [ -f $INDEX_DIR/$name/.pkgreadme ]; then
-		msg "This package has ${color_green}readme${color_reset}"
+		msg "This package has ${GREEN}readme${CRESET}"
 	fi
 	
 	# remove lock file
@@ -176,7 +170,7 @@ registerpkg() {
 	tar -t -f $PKGNAME --exclude=.pkginfo --exclude=.pkginstall --exclude=.pkgreadme ${excludefile[@]} > $INDEX_DIR/$name/.files
 	tar -x -f $PKGNAME -C $INDEX_DIR/$name .pkginstall .pkgreadme >/dev/null 2>&1
 	
-	msg "Successfully install ${color_green}$name-$version-$release${color_reset}."
+	msg "Successfully install ${GREEN}$name-$version-$release${CRESET}."
 	
 }
 
@@ -206,7 +200,7 @@ checkpkgconflict() {
 	
 	for pkg in ${conflict[@]}; do
 		if [ -d $INDEX_DIR/$pkg ]; then
-			msg "Conflict package!: ${color_yellow}$pkg${color_reset}"
+			msg "Conflict package!: ${YELLOW}$pkg${CRESET}"
 			PKG_CONFLICT=yes
 		fi
 	done
@@ -259,38 +253,12 @@ upcheckconflict() {
 	
 }
 
-# get information from compressed package
-#getname() {
-	
-	#name=$(tar xf $PKGNAME .pkginfo -O | grep ^name | cut -d " " -f3)
-	#version=$(tar xf $PKGNAME .pkginfo -O | grep ^version | cut -d " " -f3)
-	#release=$(tar xf $PKGNAME .pkginfo -O | grep ^release | cut -d " " -f3)
-	#depends=$(tar xf $PKGNAME .pkginfo -O | grep ^depends | cut -d " " -f3-)
-	#makedepends=$(tar xf $PKGNAME .pkginfo -O | grep ^makedepends | cut -d " " -f3-)
-	#conflict=$(tar xf $PKGNAME .pkginfo -O | grep ^conflict | cut -d " " -f3-)
-	
-	#packagename=$name-$version-$release
-	
-#}
-
-# get information from package index
-#getoldname() {
-	
-	#iname=$(cat $INDEX_DIR/$name/.pkginfo | grep ^name | cut -d " " -f3)
-	#iversion=$(cat $INDEX_DIR/$name/.pkginfo | grep ^version | cut -d " " -f3)
-	#irelease=$(cat $INDEX_DIR/$name/.pkginfo | grep ^release | cut -d " " -f3)
-	#backup=$(cat $INDEX_DIR/$name/.pkginfo | grep ^backup | cut -d " " -f3-)
-	
-	#ipackagename=$iname-$iversion-$irelease
-	
-#}
-
 backupconf() {
 	
 	pushd $ROOT_DIR	
 		for bkp in ${backup[@]}; do
 			if [ -e $bkp ]; then
-				msg2 "Backup ${color_purple}$bkp${color_reset}"
+				msg2 "Backup ${PURPLE}$bkp${CRESET}"
 				rm -f $bkp.spkgtmp
 				cp $bkp $bkp.spkgtmp
 				FILEBACKUP+=($bkp)
@@ -317,7 +285,7 @@ restoreconf() {
 checkoutdate() {
 	
 	if [ "$version-$release" = "$iversion-$irelease" ]; then
-		msg "Package ${color_green}$name${color_reset} is up-to-date."
+		msg "Package ${GREEN}$name${CRESET} is up-to-date."
 		exit 0
 	fi
 	
@@ -493,13 +461,13 @@ main() {
 	
 	### CHECK EXISTANT OF PACKAGE FILE ###
 	if [ ! -f $PKGNAME ]; then
-		msgerr "Package ${color_red}$1${color_reset} not exist!"
+		msgerr "Package ${RED}$1${CRESET} not exist!"
 		exit 1
 	fi
 	
 	### INTEGRITY OF PACKAGE ###
 	if ! tar -tf $PKGNAME &>/dev/null; then
-		msgerr "Package ${color_red}$1${color_reset} is corrupted!"
+		msgerr "Package ${RED}$1${CRESET} is corrupted!"
 		exit 1
 	fi
 	
@@ -514,7 +482,7 @@ main() {
 	### CHECK FOR LOCK FILE ###
 	if [ -f /tmp/spkg.lock ]; then
 		msgerr "Cant install/remove package simultaneously."
-		msgerr "remove ${color_yellow}/tmp/spkg.lock${color_reset} if no install/remove package process running."
+		msgerr "remove ${YELLOW}/tmp/spkg.lock${CRESET} if no install/remove package process running."
 		exit 1
 	fi
 	
@@ -539,14 +507,14 @@ main() {
 		iname=$(installed_pkg_info name $name)
 		iversion=$(installed_pkg_info version $name)
 		irelease=$(installed_pkg_info release $name)
-		msg "Package ${color_green}$iname-$iversion-$irelease${color_reset} already installed."
+		msg "Package ${GREEN}$iname-$iversion-$irelease${CRESET} already installed."
 		exit 0
 	fi
 	
 	### IF UPGRADE OR REINSTALL PACKAGE ###
 	if [ "$UPGRADE_PKG" ] || [ "$REINSTALL_PKG" ]; then	
 		if [ ! -d $INDEX_DIR/$name ]; then
-			msg "Package ${color_red}$name${color_reset} is not installed."
+			msg "Package ${RED}$name${CRESET} is not installed."
 			exit 1
 		fi
 		iname=$(installed_pkg_info name $name)
@@ -559,10 +527,10 @@ main() {
 				exit 0
 			fi
 			checkoutdate
-			msg "Upgrading package: ${color_yellow}$iname-$iversion-$irelease${color_reset} -> ${color_green}$name-$version-$release${color_reset}"
+			msg "Upgrading package: ${YELLOW}$iname-$iversion-$irelease${CRESET} -> ${GREEN}$name-$version-$release${CRESET}"
 		# REINSTALL PACKAGE
 		elif [ "$REINSTALL_PKG" ]; then
-			msg "Reinstall package ${color_green}$name${color_reset}."
+			msg "Reinstall package ${GREEN}$name${CRESET}."
 		fi
 	fi
 	
diff --git a/removepkg b/removepkg
index 3bd5149..71b66f9 100755
--- a/removepkg
+++ b/removepkg
@@ -15,7 +15,7 @@ spkglock() {
 
 removepkg() {
 	
-	msg "Removing ${color_green}$ipackagename${color_reset}..."
+	msg "Removing ${GREEN}$ipackagename${CRESET}..."
 	
 	### CHECK DEPENDENCY ###
 	if [ ! "$IGNORE_DEP" ]; then
@@ -70,21 +70,21 @@ removepkg() {
 	rm -R $INDEX_DIR/$1
 
 	if [ -d $INDEX_DIR/$1 ]; then
-		msgerr "Error occured while removing ${color_red}$ipackagename${color_reset}."
+		msgerr "Error occured while removing ${RED}$ipackagename${CRESET}."
 		spkglock
 		exit 1
 	else
-		msg "Successfully remove ${color_green}$ipackagename${color_reset}."
+		msg "Successfully remove ${GREEN}$ipackagename${CRESET}."
 	fi
 	
 	case $PREREMOVE_STATUS in
-		OK) msg "preremove	: ${color_green}OK${color_reset}" ;;
-		KO) msg "preremove	: ${color_red}FAIL${color_reset}" ;;
+		OK) msg "preremove	: ${GREEN}OK${CRESET}" ;;
+		KO) msg "preremove	: ${RED}FAIL${CRESET}" ;;
 	esac
 	
 	case $POSTREMOVE_STATUS in
-		OK) msg "postremove	: ${color_green}OK${color_reset}" ;;
-		KO) msg "postremove	: ${color_red}FAIL${color_reset}" ;;
+		OK) msg "postremove	: ${GREEN}OK${CRESET}" ;;
+		KO) msg "postremove	: ${RED}FAIL${CRESET}" ;;
 	esac
 	
 	runremovehooks
@@ -140,7 +140,7 @@ checkdeps() {
 	done
 	
 	if [ "${#ERRDEP[@]}" -gt 0 ]; then
-		msgwarn "Package ${color_yellow}$iname-$iversion-$irelease${color_reset} is needed for:"
+		msgwarn "Package ${YELLOW}$iname-$iversion-$irelease${CRESET} is needed for:"
 			for pkg in ${ERRDEP[@]}; do
 				msg2 "$pkg"
 			done
@@ -296,13 +296,13 @@ main() {
 	### CHECK FOR LOCK FILE ###
 	if [ -f /tmp/spkg.lock ]; then
 		msgerr "Cant install/remove package simultaneously."
-		msgerr "remove ${color_yellow}/tmp/spkg.lock${color_reset} if no install/remove package process running."
+		msgerr "remove ${YELLOW}/tmp/spkg.lock${CRESET} if no install/remove package process running."
 		exit 1
 	fi
 	
 	for pkg in ${RMNAME[@]}; do
 		if [ ! -d $INDEX_DIR/$pkg ]; then
-			msg "Package ${color_red}$pkg${color_reset} not installed."
+			msg "Package ${RED}$pkg${CRESET} not installed."
 		else
 			getoldname $pkg ### GET NAME, VERSION, RELEASE FROM INSTALLED PACKAGE DATABASE ###
 			removepkg $pkg  ### REMOVE PACKAGE ###
diff --git a/scratch b/scratch
index 769786b..3f6c856 100755
--- a/scratch
+++ b/scratch
@@ -11,42 +11,42 @@ showinfo() {
 	echo -e "    | SCRATCHPKG CONFIG |"
 	echo -e "  --+-------------------+--"
 	echo
-	echo -e "${color_purple}CFLAGS${color_reset} $CFLAGS"
-	echo -e "${color_purple}CXXFLAGS${color_reset} $CXXFLAGS"
-	echo -e "${color_purple}MAKEFLAGS${color_reset} $MAKEFLAGS"
+	echo -e "${PURPLE}CFLAGS${CRESET} $CFLAGS"
+	echo -e "${PURPLE}CXXFLAGS${CRESET} $CXXFLAGS"
+	echo -e "${PURPLE}MAKEFLAGS${CRESET} $MAKEFLAGS"
 	echo
-	echo -e "${color_purple}PORT_REPO${color_reset}"
+	echo -e "${PURPLE}PORT_REPO${CRESET}"
 	for repo in ${PORT_REPO[@]}; do
 		echo $repo
 	done
 	echo
-	echo -e "${color_purple}ROOT_DIR${color_reset} $ROOT_DIR"
-	echo -e "${color_purple}INDEX_DIR${color_reset} $INDEX_DIR"
+	echo -e "${PURPLE}ROOT_DIR${CRESET} $ROOT_DIR"
+	echo -e "${PURPLE}INDEX_DIR${CRESET} $INDEX_DIR"
 	echo
-	echo -e "${color_purple}PACKAGE_DIR${color_reset} $PACKAGE_DIR"
-	echo -e "${color_purple}SOURCE_DIR${color_reset} $SOURCE_DIR"
-	echo -e "${color_purple}WORK_DIR${color_reset} $WORK_DIR"
-	echo -e "${color_purple}LOG_DIR${color_reset} $LOG_DIR"
-	echo -e "${color_purple}HOOK_DIR${color_reset} $HOOK_DIR"
+	echo -e "${PURPLE}PACKAGE_DIR${CRESET} $PACKAGE_DIR"
+	echo -e "${PURPLE}SOURCE_DIR${CRESET} $SOURCE_DIR"
+	echo -e "${PURPLE}WORK_DIR${CRESET} $WORK_DIR"
+	echo -e "${PURPLE}LOG_DIR${CRESET} $LOG_DIR"
+	echo -e "${PURPLE}HOOK_DIR${CRESET} $HOOK_DIR"
 	echo
-	echo -e "${color_purple}NO_EXTRACT${color_reset} $NO_EXTRACT"
+	echo -e "${PURPLE}NO_EXTRACT${CRESET} $NO_EXTRACT"
 	echo
-	echo -e "${color_purple}OPTIONS${color_reset}"
+	echo -e "${PURPLE}OPTIONS${CRESET}"
 	for opt in ${OPTIONS[@]}; do
 		echo $opt
 	done
 	echo
-	echo -e "${color_purple}PURGE_FILES${color_reset}"
+	echo -e "${PURPLE}PURGE_FILES${CRESET}"
 	for pg in ${PURGE_FILES[@]}; do
 		echo $pg
 	done
 	echo
-	echo -e "${color_purple}DOC_DIRS${color_reset}"
+	echo -e "${PURPLE}DOC_DIRS${CRESET}"
 	for dc in ${DOC_DIRS[@]}; do
 		echo $dc
 	done
 	echo
-	echo -e "${color_purple}MAN_DIRS${color_reset}"
+	echo -e "${PURPLE}MAN_DIRS${CRESET}"
 	for md in ${MAN_DIRS[@]}; do
 		echo $md
 	done
@@ -60,7 +60,7 @@ listinstalled() {
 		iname=$(installed_pkg_info name $pkg)
 		iversion=$(installed_pkg_info version $pkg)
 		irelease=$(installed_pkg_info release $pkg)
-		echo -e "$iname ${color_green}$iversion${color_reset}-${color_blue}$irelease${color_reset}"
+		echo -e "$iname ${GREEN}$iversion${CRESET}-${BLUE}$irelease${CRESET}"
 	done
 	
 }
@@ -88,7 +88,7 @@ listorphan() {
 			iname=$(installed_pkg_info name $all)
 			iversion=$(installed_pkg_info version $all)
 			irelease=$(installed_pkg_info release $all)
-			echo -e "$iname ${color_green}$iversion${color_reset}-${color_blue}$irelease${color_reset}"
+			echo -e "$iname ${GREEN}$iversion${CRESET}-${BLUE}$irelease${CRESET}"
 		fi
 	done
 	
@@ -99,9 +99,9 @@ searchpkg() {
 	for port in ${PORT_REPO[@]}; do
 		if [ -d $port ]; then
 			pushd $port
-				OUTPUT=$(grep -R "# description" | grep -i "$1" | grep "$BUILD_SCRIPT" | cut -d '/' -f1)
+				OUTPUT=$(grep -R description | grep "$BUILD_SCRIPT:# description[[:blank:]]*:" | sed "s/$BUILD_SCRIPT:# description[[:blank:]]*://" | grep -i "$1" | cut -d '/' -f1)
 			popd
-			if [ "$OUTPUT" ]; then
+			if [ -n "$OUTPUT" ]; then
 				found=yes
 				for out in ${OUTPUT[@]}; do
 					if [ -f $port/$out/$BUILD_SCRIPT ]; then
@@ -110,16 +110,16 @@ searchpkg() {
 						popd
 						if [ ! -z "$name" ] && [ ! -z "$version" ] && [ ! -z "$release" ]; then
 							portname=$(basename $port)
-							search_result="${color_blue}($portname)${color_reset} ${color_purple}$name${color_reset} ${color_cyan}$version-$release${color_reset}"
+							search_result="${BLUE}($portname)${CRESET} ${PURPLE}$name${CRESET} ${CYAN}$version-$release${CRESET}"
 							if [ -d $INDEX_DIR/$name ]; then
 								iversion=$(installed_pkg_info version $name)
 								irelease=$(installed_pkg_info release $name)
 								[ -f $INDEX_DIR/$name/.lock ] && ITSLOCK="[locked]"
 								if [ "$version-$release" = "$iversion-$irelease" ]; then
-									msg3 "$search_result ${color_green}[installed]${color_reset} ${color_blue}$ITSLOCK${color_reset}"
+									msg3 "$search_result ${GREEN}[installed]${CRESET} ${BLUE}$ITSLOCK${CRESET}"
 									msg4 "$description"
 								else
-									msg3 "$search_result ${color_yellow}[installed $iversion-$irelease]${color_reset} ${color_blue}$ITSLOCK${color_reset}"
+									msg3 "$search_result ${YELLOW}[installed $iversion-$irelease]${CRESET} ${BLUE}$ITSLOCK${CRESET}"
 									msg4 "$description"
 								fi
 							else
@@ -133,7 +133,7 @@ searchpkg() {
 			fi
 		fi
 	done
-	if [ "$found" != "yes" ]; then
+	if [ ! "$found" ]; then
 		msg "No matching package found."
 	fi
 }
@@ -142,7 +142,7 @@ checkowner() {
 
 	for pkg in $(allinstalled); do
 		for output in $(cat $INDEX_DIR/$pkg/.files | grep $1); do
-			echo -e "${color_cyan}$pkg${color_reset} => ${color_purple}$output${color_reset}"
+			echo -e "${CYAN}$pkg${CRESET} => ${PURPLE}$output${CRESET}"
 		done
 	done
 	
@@ -151,7 +151,7 @@ checkowner() {
 showtree() {
 	
 	if [ ! -f $INDEX_DIR/$1/.pkginfo ]; then
-		msg "Package ${color_red}$1${color_reset} not installed."
+		msg "Package ${RED}$1${CRESET} not installed."
 	else
 		while IFS=' ' read -r line; do
 			echo "$line"
@@ -166,14 +166,14 @@ checkintegrity() {
 		for pkg in $(allinstalled); do
 			while IFS=' ' read -r line; do
 					if [ ! -e "$line" ]; then
-						msg "${color_blue}$pkg${color_reset} is missing: ${color_purple}/$line${color_reset}"
+						msg "${BLUE}$pkg${CRESET} is missing: ${PURPLE}/$line${CRESET}"
 						MISSING_FILE=yes
 					fi
 			done < <(cat $INDEX_DIR/$pkg/.files)
 		done
 	popd
 	
-	[ "$UID" != "0" ] && msg "${color_yellow}(check integrity is recommended run as root or using sudo)${color_reset}"
+	[ "$UID" != "0" ] && msg "${YELLOW}(check integrity is recommended run as root or using sudo)${CRESET}"
 	[ ! "$MISSING_FILE" ] && msg "Your system file is consistent with package tree."
 	
 }
@@ -181,12 +181,12 @@ checkintegrity() {
 showpackageinfo() {
 	
 	if [ ! -f $1 ]; then
-		msg "${color_red}$1${color_reset} not exist."
+		msg "${RED}$1${CRESET} not exist."
 		exit 1
 	else
 		if [ $(tar -tf "$1" | grep -x ".pkginfo") ]; then
 			getpkginfofrompkg $1
-			echo -e "${color_green}info:${color_reset}"
+			echo -e "${GREEN}info:${CRESET}"
 				[ "$name" ] && echo "name = $name"
 				[ "$version" ] && echo "version = $version"
 				[ "$release" ] && echo "release = $release"
@@ -197,18 +197,18 @@ showpackageinfo() {
 				[ "$makedepends" ] && for md in ${makedepends[@]}; do echo "makedepends = $md"; done
 				echo ""
 			if [ $(tar -tf "$1" | grep -x ".pkgreadme") ]; then
-				echo -e "${color_green}readme:${color_reset}"
+				echo -e "${GREEN}readme:${CRESET}"
 				tar -xf $1 .pkgreadme -O
 				echo ""
 				echo ""
 			fi
 			if [ $(tar -tf "$1" | grep -x ".pkginstall") ]; then
-				echo -e "${color_green}pkginstall files:${color_reset}"
+				echo -e "${GREEN}pkginstall files:${CRESET}"
 				tar -xf $1 .pkginstall -O
 				echo ""
 			fi
 		else
-			msg "${color_yellow}$1${color_reset} is not package created by scratchpkg."
+			msg "${YELLOW}$1${CRESET} is not package created by scratchpkg."
 			exit 1
 		fi
 	fi
@@ -222,27 +222,27 @@ showdepends() {
 			getpkginfo
 		popd
 	else
-		msgerr "Port ${color_red}$1${color_reset} not exist."
+		msgerr "Port ${RED}$1${CRESET} not exist."
 		exit 1
 	fi
 			
 	for dep in ${depends[@]}; do
 		if [ -d $INDEX_DIR/$dep ]; then
-			msg2 "$dep ${color_green}[installed]${color_reset}"
+			msg2 "$dep ${GREEN}[installed]${CRESET}"
 		elif getportpath $dep >/dev/null; then
 			msg2 "$dep"
 		else
-			msg2 "$dep ${color_red}[port not exist]${color_reset}"
+			msg2 "$dep ${RED}[port not exist]${CRESET}"
 		fi
 	done
 			
 	for mdep in ${makedepends[@]}; do
 		if [ -d $INDEX_DIR/$mdep ]; then
-			msg2 "$mdep ${color_cyan}(make)${color_reset} ${color_green}[installed]${color_reset}"
+			msg2 "$mdep ${CYAN}(make)${CRESET} ${GREEN}[installed]${CRESET}"
 		elif getportpath $mdep >/dev/null; then
-			msg2 "$mdep ${color_cyan}(make)${color_reset}"
+			msg2 "$mdep ${CYAN}(make)${CRESET}"
 		else
-			msg "$mdep ${color_cyan}(make)${color_reset} ${color_red}[port not exist]${color_reset}"
+			msg "$mdep ${CYAN}(make)${CRESET} ${RED}[port not exist]${CRESET}"
 		fi
 	done
 }	
@@ -255,8 +255,8 @@ checkupdate() {
 			iversion=$(installed_pkg_info version $pkg)
 			irelease=$(installed_pkg_info release $pkg)
 			[ -f "$INDEX_DIR/$pkg/.lock" ] && ITSLOCK="[locked]"
-			outdatemsg="$name ${color_red}$iversion-$irelease${color_reset} => ${color_green}$version-$release${color_reset} ${color_blue}$ITSLOCK${color_reset}"
-			newerinstmsg="$name ${color_red}$iversion-$irelease${color_reset} => ${color_green}$version-$release${color_reset} ${color_yellow}[newer installed]${color_reset} ${color_blue}$ITSLOCK${color_reset}"
+			outdatemsg="$name ${RED}$iversion-$irelease${CRESET} => ${GREEN}$version-$release${CRESET} ${BLUE}$ITSLOCK${CRESET}"
+			newerinstmsg="$name ${RED}$iversion-$irelease${CRESET} => ${GREEN}$version-$release${CRESET} ${YELLOW}[newer installed]${CRESET} ${BLUE}$ITSLOCK${CRESET}"
 			if [ "$version" !=  "$iversion" ]; then
 				vercomp $version $iversion
 				if [ $? = 2 ]; then
@@ -286,7 +286,7 @@ checkupdate() {
 showdependent() {
 	
 	if [ ! -d $INDEX_DIR/$1 ]; then
-		msg "Package ${color_red}$1${color_reset} not installed."
+		msg "Package ${RED}$1${CRESET} not installed."
 		exit 1
 	else
 		for all_installed in $(ls $INDEX_DIR); do
@@ -301,7 +301,7 @@ showdependent() {
 				for mdep in ${makedepend[@]}; do
 					if [ $mdep = $1 ]; then
 						DP=yes
-						msg2 "$all_installed ${color_cyan}(make)${color_reset}"
+						msg2 "$all_installed ${CYAN}(make)${CRESET}"
 					fi
 				done
 		done
@@ -321,7 +321,7 @@ showglobaldependent() {
 						if [ $dep = $1 ]; then
 							GDP=yes
 							if [ -d $INDEX_DIR/$all ]; then
-								msg2 "$all ${color_green}[installed]${color_reset}"
+								msg2 "$all ${GREEN}[installed]${CRESET}"
 							else
 								msg2 "$all"
 							fi
@@ -332,9 +332,9 @@ showglobaldependent() {
 						if [ $mdep = $1 ]; then
 							GDP=yes
 							if [ -d $INDEX_DIR/$all ]; then
-								msg2 "$all ${color_cyan}(make)${color_reset} ${color_green}[installed]${color_reset}"
+								msg2 "$all ${CYAN}(make)${CRESET} ${GREEN}[installed]${CRESET}"
 							else
-								msg2 "$all ${color_cyan}(make)${color_reset}"
+								msg2 "$all ${CYAN}(make)${CRESET}"
 							fi
 						fi
 					done
@@ -447,11 +447,11 @@ pkgcache() {
 		ALL_SOURCES_SIZE=0M
 	fi
 	
-	msg "${color_cyan}Package cache ($ALL_PACKAGES_SIZE):${color_reset}"
+	msg "${CYAN}Package cache ($ALL_PACKAGES_SIZE):${CRESET}"
 	[ ${#ALL_PACKAGES[@]} -gt 0 ] && (echo ${ALL_PACKAGES[@]} | tr ' ' '\n') || echo "(none)"
 	
 	echo ""
-	msg "${color_cyan}Source cache ($ALL_SOURCES_SIZE):${color_reset}"
+	msg "${CYAN}Source cache ($ALL_SOURCES_SIZE):${CRESET}"
 	[ ${#ALL_SOURCES[@]} -gt 0 ] && (echo ${ALL_SOURCES[@]} | tr ' ' '\n') || echo "(none)"
 	
 }
@@ -518,15 +518,15 @@ listports() {
 			for ports in $(ls $repo/*/$BUILD_SCRIPT | rev | cut -d '/' -f2 | rev 2>/dev/null); do
 				. "$repo/$ports/$BUILD_SCRIPT"
 				if [ -f "$PACKAGE_DIR/$name-$version-$release.spkg.txz" ]; then
-					echo -e "$name ${color_green}$version${color_reset}-${color_blue}$release${color_reset} ${color_purple}[*]${color_reset}"
+					echo -e "$name ${GREEN}$version${CRESET}-${BLUE}$release${CRESET} ${PURPLE}[*]${CRESET}"
 				else
-					echo -e "$name ${color_green}$version${color_reset}-${color_blue}$release${color_reset}"
+					echo -e "$name ${GREEN}$version${CRESET}-${BLUE}$release${CRESET}"
 				fi
 			done
 		fi
 	done
 	
-	[ "$REPO_EXIST" ] || msgerr "Repository ${color_red}$1${color_reset} not exist."
+	[ "$REPO_EXIST" ] || msgerr "Repository ${RED}$1${CRESET} not exist."
 	
 }
 
@@ -611,10 +611,10 @@ missingdep() {
 			done
 		fi
 		if [ ${#msd[@]} -gt 0 ]; then
-			echo -e "${color_green}$pkg${color_reset} missing ${color_red}${msd[@]}${color_reset}"
+			echo -e "${GREEN}$pkg${CRESET} missing ${RED}${msd[@]}${CRESET}"
 		fi
 		if [ ${#msmd[@]} -gt 0 ]; then
-			echo -e "${color_green}$pkg${color_reset} missing ${color_red}${msmd[@]}${color_reset} ${color_blue}(make)${color_reset}"
+			echo -e "${GREEN}$pkg${CRESET} missing ${RED}${msmd[@]}${CRESET} ${BLUE}(make)${CRESET}"
 		fi
 	done
 
@@ -644,7 +644,7 @@ missingport() {
 				for dep in $depends; do
 					if ! getportpath $dep >/dev/null; then
 						ms+=($dep)
-						#echo -e "${color_green}$portname${color_reset} requires ${color_red}$dep${color_reset}"
+						#echo -e "${GREEN}$portname${CRESET} requires ${RED}$dep${CRESET}"
 					fi
 				done
 			fi
@@ -652,15 +652,15 @@ missingport() {
 				for mdep in $makedepends; do
 					if ! getportpath $mdep >/dev/null; then
 						mms+=($mdep)
-						#echo -e "${color_green}$portname${color_reset} requires ${color_red}$mdep${color_reset} ${color_blue}(make)${color_reset}"
+						#echo -e "${GREEN}$portname${CRESET} requires ${RED}$mdep${CRESET} ${BLUE}(make)${CRESET}"
 					fi
 				done
 			fi
 			if [ ${#ms[@]} -gt 0 ]; then
-				echo -e "${color_green}$portname${color_reset} requires ${color_red}${ms[@]}${color_reset}"
+				echo -e "${GREEN}$portname${CRESET} requires ${RED}${ms[@]}${CRESET}"
 			fi
 			if [ ${#mms[@]} -gt 0 ]; then
-				echo -e "${color_green}$portname${color_reset} requires ${color_red}${mms[@]}${color_reset} ${color_blue}(make)${color_reset}"
+				echo -e "${GREEN}$portname${CRESET} requires ${RED}${mms[@]}${CRESET} ${BLUE}(make)${CRESET}"
 			fi
 		done
 	done
@@ -684,7 +684,6 @@ Options:
   -pd, --package-dir <path>           override directory path for compiled package
   -v,  --verbose                      verbose process
   -im, --ignore-mdsum                 skip md5sum check for sources
-  -um, --update-mdsum                 update md5sum file for port
   -do, --download-only                download sources only
   -eo, --extract-only                 extract sources only
   -kw, --keep-work                    keep working directory
@@ -752,7 +751,6 @@ parse_options() {
 			-fr |     --force-rebuild) OPTS+=($1) ;;
 			-v  |           --verbose) OPTS+=($1) ;;
 			-im |      --ignore-mdsum) OPTS+=($1) ;;
-			-um |      --update-mdsum) OPTS+=($1) ;;
 			-do |     --download-only) OPTS+=($1) ;;
 			-eo |      --extract-only) OPTS+=($1) ;;
 			-kw |         --keep-work) OPTS+=($1) ;;
diff --git a/spkgbuild.proto b/spkgbuild.proto
index d353b0e..7b8aecc 100644
--- a/spkgbuild.proto
+++ b/spkgbuild.proto
@@ -10,6 +10,7 @@ version=
 release=1
 options=()
 source=()
+md5sum=()
 
 build() {
 	cd $name-$version