diff --git a/advanced/Scripts/blacklist.sh b/advanced/Scripts/blacklist.sh
index 7e99f830..d83ca867 100755
--- a/advanced/Scripts/blacklist.sh
+++ b/advanced/Scripts/blacklist.sh
@@ -17,7 +17,7 @@ else
 	echo "::: sudo will be used."
 	# Check if it is actually installed
 	# If it isn't, exit because the install cannot complete
-	if [[ $(dpkg-query -s sudo) ]];then
+	if [ -x "$(command -v sudo)" ];then
 		export SUDO="sudo"
 	else
 		echo "::: Please install sudo or run this script as root."
diff --git a/advanced/Scripts/piholeDebug.sh b/advanced/Scripts/piholeDebug.sh
index 263fe9cd..a5958bbd 100755
--- a/advanced/Scripts/piholeDebug.sh
+++ b/advanced/Scripts/piholeDebug.sh
@@ -36,7 +36,7 @@ if [[ $EUID -eq 0 ]]; then
 else
 	echo "::: Sudo will be used for debugging."
 	# Check if sudo is actually installed
-	if [[ $(dpkg-query -s sudo) ]]; then
+	if [ -x "$(command -v sudo)" ]; then
 		export SUDO="sudo"
 	else
 		echo "::: Please install sudo or run this as root."
diff --git a/advanced/Scripts/setupLCD.sh b/advanced/Scripts/setupLCD.sh
index df2be704..03be4e0a 100755
--- a/advanced/Scripts/setupLCD.sh
+++ b/advanced/Scripts/setupLCD.sh
@@ -19,7 +19,7 @@ else
 	echo "::: sudo will be used."
   # Check if it is actually installed
   # If it isn't, exit because the install cannot complete
-  if [[ $(dpkg-query -s sudo) ]];then
+  if [ -x "$(command -v sudo)" ];then
 		export SUDO="sudo"
   else
 		echo "::: Please install sudo or run this script as root."
diff --git a/advanced/Scripts/whitelist.sh b/advanced/Scripts/whitelist.sh
index 37b4ade4..266ac49e 100755
--- a/advanced/Scripts/whitelist.sh
+++ b/advanced/Scripts/whitelist.sh
@@ -17,7 +17,7 @@ else
 	echo "::: sudo will be used."
 	# Check if it is actually installed
 	# If it isn't, exit because the install cannot complete
-	if [[ $(dpkg-query -s sudo) ]];then
+	if [ -x "$(command -v sudo)" ];then
 		export SUDO="sudo"
 	else
 		echo "::: Please install sudo or run this script as root."
diff --git a/automated install/uninstall.sh b/automated install/uninstall.sh
index 83168d6a..749bf799 100755
--- a/automated install/uninstall.sh	
+++ b/automated install/uninstall.sh	
@@ -17,7 +17,7 @@ else
 	echo "::: Sudo will be used for the uninstall."
   # Check if it is actually installed
   # If it isn't, exit because the unnstall cannot complete
-  if [[ $(dpkg-query -s sudo) ]];then
+  if [ -x "$(command -v sudo)" ];then
 		export SUDO="sudo"
   else
     echo "::: Please install sudo or run this as root."
diff --git a/gravity.sh b/gravity.sh
index ce04e181..ff85fd21 100755
--- a/gravity.sh
+++ b/gravity.sh
@@ -19,7 +19,7 @@ else
 	echo "::: sudo will be used."
 	# Check if it is actually installed
 	# If it isn't, exit because the install cannot complete
-	if [[ $(dpkg-query -s sudo) ]];then
+	if [ -x "$(command -v sudo)" ];then
 		export SUDO="sudo"
 	else
 		echo "::: Please install sudo or run this script as root."
diff --git a/pihole b/pihole
index 1c348b71..bbcb82d0 100755
--- a/pihole
+++ b/pihole
@@ -17,7 +17,7 @@ if [[ ! $EUID -eq 0 ]];then
 	#echo "::: Sudo will be used for this tool."
   # Check if it is actually installed
   # If it isn't, exit because the pihole cannot be invoked without privileges.
-  if [[ $(dpkg-query -s sudo) ]];then
+  if [ -x "$(command -v sudo)" ];then
 		export SUDO="sudo"
   else
     echo "::: Please install sudo or run this as root."