diff --git a/assets/linux/updateBiglyBT b/assets/linux/updateBiglyBT
index c9c39fa34cb..fcb1f9d31e8 100644
--- a/assets/linux/updateBiglyBT
+++ b/assets/linux/updateBiglyBT
@@ -10,36 +10,29 @@ exists () {
   type "$1" >/dev/null 2>/dev/null
 }
 
-if [ "$1" = "rerun" ]; then
-	ISRERUN=1
-else
-	ISRERUN=0
-fi
+declare PARAMS=( "${@:3}" )
+[[ "$1" = "rerun" ]] && declare -ri ISRERUN=1
+
 
-if [ $ISRERUN -eq 1 ]; then
-	PARAMS=( "${@:3}" )
-else
-	SCRIPT=`realpath $0`
-	SCRIPTPATH=`dirname $SCRIPT`
+if [[ ! $ISRERUN ]]; then
+	SCRIPT=$(realpath "$0")
+	SCRIPTPATH=$(dirname "$SCRIPT")
 
-	if [ "$1" = "" ]; then
+	if [[ ! "$1" ]]; then
 		# No params were passed in, make ones up
 		PARAMS=( "com.biglybt.update.Updater" "updateonly" "${SCRIPTPATH}" "${HOME}/.biglybt" )
-	else
-		PARAMS=( "${@}" )
 	fi
 	
 	for i in "${!PARAMS[@]}"; do
 		if [ "${PARAMS[$i]}" = "updateonly" ] || [ "${PARAMS[$i]}" = "restart" ]; then
-			PARAM_IDX_APPPATH=$(( $i + 1 ))
+			PARAM_IDX_APPPATH=$(( i + 1 ))
 			break
 		fi
 	done
 
 	if [ ! -w "${PARAMS[${PARAM_IDX_APPPATH}]}" ]; then
 		# Can't write to appdir, going to need super user
-	
-		if [ "$EUID" -ne 0 ]; then
+		if (( EUID != 0 )); then
 			if exists "pkexec"; then
 				CMD="pkexec"
 			elif exists "gksudo"; then
@@ -50,15 +43,14 @@ else
 				CMD="sudo"
 			else
 				echo "Can't get write access to ${PARAMS[${PARAM_IDX_APPPATH}]}"
-				echo "Please run ${SCRIPT} with higher access level"
+				echo "Please run $SCRIPT with higher access level"
 				exit 1
 			fi
 		
-			echo Running as root..
-			$CMD $SCRIPT "rerun" "${USER}" ${PARAMS[@]}
-			if [ $? -ne 0 ]; then
-				echo "Could not run with ${CMD}. Trying one more time with sudo"
-				sudo $SCRIPT "rerun" "${USER}" ${PARAMS[@]}
+			echo "Running as root..."
+			if ! $CMD "$SCRIPT" "rerun" "$USER" "${PARAMS[@]}"; then
+				echo "Could not run with $CMD. Trying one more time with sudo"
+				sudo "$SCRIPT" "rerun" "$USER" "${PARAMS[@]}"
 			fi
 			exit
 		fi
@@ -68,18 +60,18 @@ else
 fi
 
 for i in "${!PARAMS[@]}"; do
-	if [ "${PARAMS[$i]}" = "updateonly" ] || [ "${PARAMS[$i]}" = "restart" ]; then
-		PARAM_IDX_USERPATH=$(( $i + 2 ))
+	if [[ "${PARAMS[$i]}" = "updateonly" || "${PARAMS[$i]}" = "restart" ]]; then
+		PARAM_IDX_USERPATH=$(( i + 2 ))
 		break
 	fi
 done
 
-echo Running Updater..
-java -cp "${PARAMS[${PARAM_IDX_USERPATH}]}/plugins/azupdater/Updater.jar" ${PARAMS[@]}
+echo "Running Updater..."
+java -cp "${PARAMS[${PARAM_IDX_USERPATH}]}/plugins/azupdater/Updater.jar" "${PARAMS[@]}"
 
-if [ $ISRERUN -eq 1 ]; then
-	echo Ensuring $2 still owns ${PARAMS[${PARAM_IDX_USERPATH}]}
-	chown -R $2:$2 ${PARAMS[${PARAM_IDX_USERPATH}]}
+if [[ $ISRERUN ]]; then
+	echo "Ensuring $2 still owns ${PARAMS[${PARAM_IDX_USERPATH}]}"
+	chown -R "$2":"$2" "${PARAMS[${PARAM_IDX_USERPATH}]}"
 fi
 
-echo Done
\ No newline at end of file
+echo Done