diff --git a/bin/clean.sh b/bin/clean.sh
index fbf43c1..ee4c645 100755
--- a/bin/clean.sh
+++ b/bin/clean.sh
@@ -216,9 +216,9 @@ get_cleanup_path_size_kb() {
     if [[ -L "$path" ]]; then
         if command -v stat > /dev/null 2>&1; then
             local bytes
-            bytes=$(stat -f%z "$path" 2>/dev/null || echo "0")
+            bytes=$(stat -f%z "$path" 2> /dev/null || echo "0")
             if [[ "$bytes" =~ ^[0-9]+$ && "$bytes" -gt 0 ]]; then
-                echo $(( (bytes + 1023) / 1024 ))
+                echo $(((bytes + 1023) / 1024))
             else
                 echo 0
             fi
@@ -410,7 +410,7 @@ safe_clean() {
                     # Only increment failure count if we actually tried and failed
                     # Check existence to avoid false failure report for already gone files
                     if [[ -e "$path" && "$DRY_RUN" != "true" ]]; then
-                         ((removal_failed_count++))
+                        ((removal_failed_count++))
                     fi
                 fi
             fi
@@ -450,10 +450,10 @@ safe_clean() {
                 ((total_count += 1))
                 removed_any=1
             else
-                 # Only increment failure count if we actually tried and failed
-                 if [[ -e "$path" && "$DRY_RUN" != "true" ]]; then
-                     ((removal_failed_count++))
-                 fi
+                # Only increment failure count if we actually tried and failed
+                if [[ -e "$path" && "$DRY_RUN" != "true" ]]; then
+                    ((removal_failed_count++))
+                fi
             fi
             ((idx++))
         done
diff --git a/lib/optimize/tasks.sh b/lib/optimize/tasks.sh
index cbf73ca..1211338 100644
--- a/lib/optimize/tasks.sh
+++ b/lib/optimize/tasks.sh
@@ -269,7 +269,7 @@ opt_sqlite_vacuum() {
             page_count=$(echo "$page_info" | awk 'NR==1 {print $1}' 2> /dev/null || echo "")
             freelist_count=$(echo "$page_info" | awk 'NR==2 {print $1}' 2> /dev/null || echo "")
             if [[ "$page_count" =~ ^[0-9]+$ && "$freelist_count" =~ ^[0-9]+$ && "$page_count" -gt 0 ]]; then
-                if (( freelist_count * 100 < page_count * 5 )); then
+                if ((freelist_count * 100 < page_count * 5)); then
                     ((skipped++))
                     continue
                 fi
@@ -518,7 +518,7 @@ opt_bluetooth_reset() {
         local bt_audio_active=false
 
         # Check system audio output
-        if system_profiler SPBluetoothDataType 2>/dev/null | grep -q "Connected: Yes"; then
+        if system_profiler SPBluetoothDataType 2> /dev/null | grep -q "Connected: Yes"; then
             # Check if any audio/video apps are running that might be using Bluetooth
             local -a media_apps=("Music" "Spotify" "VLC" "QuickTime Player" "TV" "Podcasts")
             for app in "${media_apps[@]}"; do