diff --git a/ct/adguard.sh b/ct/adguard.sh
index ac8278f8..9838585b 100644
--- a/ct/adguard.sh
+++ b/ct/adguard.sh
@@ -43,11 +43,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -71,7 +68,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -87,11 +83,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -115,7 +108,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -132,11 +124,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -160,7 +149,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/daemonsync.sh b/ct/daemonsync.sh
index c6403ba5..5b47dfa6 100644
--- a/ct/daemonsync.sh
+++ b/ct/daemonsync.sh
@@ -41,11 +41,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -69,7 +66,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -85,11 +81,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -113,7 +106,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -130,11 +122,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -158,7 +147,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/dashy.sh b/ct/dashy.sh
index fc62084b..49e63390 100644
--- a/ct/dashy.sh
+++ b/ct/dashy.sh
@@ -42,11 +42,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -70,7 +67,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -86,11 +82,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -114,7 +107,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -131,11 +123,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -159,7 +148,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/debian.sh b/ct/debian.sh
index ebd9f482..fc7f98d4 100644
--- a/ct/debian.sh
+++ b/ct/debian.sh
@@ -42,11 +42,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -70,7 +67,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -86,11 +82,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -114,7 +107,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -131,11 +123,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -159,7 +148,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/docker.sh b/ct/docker.sh
index b1ad914a..43ceb81b 100644
--- a/ct/docker.sh
+++ b/ct/docker.sh
@@ -39,11 +39,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -67,7 +64,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -83,11 +79,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -111,7 +104,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${RD} If Using ZFS, You Have Storage Driver Options${CL}\n"
@@ -130,11 +122,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -158,7 +147,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 show_menu4(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -176,11 +164,8 @@ option_picked(){
     printf " ${YW}${message4}${CL}\n"
 }
 show_menu4
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -204,7 +189,6 @@ while [ $opt != '' ]
             show_menu4;
         ;;
       esac
-    fi
   done
   
 set -o errexit
diff --git a/ct/esphome.sh b/ct/esphome.sh
index 06f9d513..8fcbf29b 100644
--- a/ct/esphome.sh
+++ b/ct/esphome.sh
@@ -42,11 +42,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -70,7 +67,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -86,11 +82,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -114,7 +107,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -131,11 +123,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -159,7 +148,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/grafana.sh b/ct/grafana.sh
index 0e7244df..04d65207 100644
--- a/ct/grafana.sh
+++ b/ct/grafana.sh
@@ -40,11 +40,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -68,7 +65,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -84,11 +80,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -112,7 +105,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -129,11 +121,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -157,7 +146,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/heimdalldashboard.sh b/ct/heimdalldashboard.sh
index fac092ed..1a60e74c 100644
--- a/ct/heimdalldashboard.sh
+++ b/ct/heimdalldashboard.sh
@@ -42,11 +42,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -70,7 +67,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -86,11 +82,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -114,7 +107,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -131,11 +123,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -159,7 +148,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/homeassistant.sh b/ct/homeassistant.sh
index e25ce4d5..938b6921 100644
--- a/ct/homeassistant.sh
+++ b/ct/homeassistant.sh
@@ -40,11 +40,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -68,7 +65,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -84,11 +80,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -112,7 +105,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${RD} If Using ZFS, You Have Storage Driver Options${CL}\n"
@@ -131,11 +123,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -159,7 +148,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 show_menu4(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -177,11 +165,8 @@ option_picked(){
     printf " ${YW}${message4}${CL}\n"
 }
 show_menu4
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -205,7 +190,6 @@ while [ $opt != '' ]
             show_menu4;
         ;;
       esac
-    fi
   done
    
 set -o errexit
diff --git a/ct/homebridge.sh b/ct/homebridge.sh
index 8f6eb118..3e045697 100644
--- a/ct/homebridge.sh
+++ b/ct/homebridge.sh
@@ -39,11 +39,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -67,7 +64,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -83,11 +79,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -111,7 +104,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -128,11 +120,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -156,7 +145,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/influxdb.sh b/ct/influxdb.sh
index 119d2a4e..0d9e113c 100644
--- a/ct/influxdb.sh
+++ b/ct/influxdb.sh
@@ -40,11 +40,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -68,7 +65,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -84,11 +80,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -112,7 +105,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -129,11 +121,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -157,7 +146,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/mariadb.sh b/ct/mariadb.sh
index 73e2134a..233296d4 100644
--- a/ct/mariadb.sh
+++ b/ct/mariadb.sh
@@ -40,11 +40,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -68,7 +65,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -84,11 +80,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -112,7 +105,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -129,11 +121,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -157,7 +146,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/motioneye.sh b/ct/motioneye.sh
index 92894a21..0c3449b3 100644
--- a/ct/motioneye.sh
+++ b/ct/motioneye.sh
@@ -41,11 +41,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -69,7 +66,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -85,11 +81,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -113,7 +106,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -130,11 +122,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -158,7 +147,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/mqtt.sh b/ct/mqtt.sh
index 254f4619..7bd70ed0 100644
--- a/ct/mqtt.sh
+++ b/ct/mqtt.sh
@@ -40,11 +40,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -68,7 +65,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -84,11 +80,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -112,7 +105,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -129,11 +121,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -157,7 +146,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/nginx-proxy-manager.sh b/ct/nginx-proxy-manager.sh
index 670cbdcd..2b147d60 100644
--- a/ct/nginx-proxy-manager.sh
+++ b/ct/nginx-proxy-manager.sh
@@ -39,11 +39,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -67,7 +64,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -83,11 +79,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -111,7 +104,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -128,11 +120,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -156,7 +145,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/node-red.sh b/ct/node-red.sh
index 504ddc71..9ecc7d17 100644
--- a/ct/node-red.sh
+++ b/ct/node-red.sh
@@ -40,11 +40,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -68,7 +65,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -84,11 +80,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -112,7 +105,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -129,11 +121,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -157,7 +146,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/omada.sh b/ct/omada.sh
index af8e3b65..6ec8036b 100644
--- a/ct/omada.sh
+++ b/ct/omada.sh
@@ -40,11 +40,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -68,7 +65,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -84,11 +80,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -112,7 +105,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -129,11 +121,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -157,7 +146,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/photoprism.sh b/ct/photoprism.sh
index 076aefef..31035d89 100644
--- a/ct/photoprism.sh
+++ b/ct/photoprism.sh
@@ -42,11 +42,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -70,7 +67,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -86,11 +82,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -114,7 +107,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -131,11 +123,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -159,7 +148,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/pihole.sh b/ct/pihole.sh
index 2667f184..9a0abcdd 100644
--- a/ct/pihole.sh
+++ b/ct/pihole.sh
@@ -41,11 +41,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -69,7 +66,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -85,11 +81,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -113,7 +106,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -130,11 +122,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -158,7 +147,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/technitiumdns.sh b/ct/technitiumdns.sh
index 15ffdf42..2d960480 100644
--- a/ct/technitiumdns.sh
+++ b/ct/technitiumdns.sh
@@ -42,11 +42,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -70,7 +67,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -86,11 +82,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -114,7 +107,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -131,11 +123,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -159,7 +148,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/ubuntu.sh b/ct/ubuntu.sh
index d24150a7..4152e1d0 100644
--- a/ct/ubuntu.sh
+++ b/ct/ubuntu.sh
@@ -40,11 +40,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -68,7 +65,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -84,11 +80,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -112,7 +105,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -129,11 +121,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -157,7 +146,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/unifi.sh b/ct/unifi.sh
index 6b485dd6..077f3cc1 100644
--- a/ct/unifi.sh
+++ b/ct/unifi.sh
@@ -41,11 +41,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -69,7 +66,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -85,11 +81,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -113,7 +106,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -130,11 +122,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -158,7 +147,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/vaultwarden.sh b/ct/vaultwarden.sh
index 6e8c43b7..fe16570c 100644
--- a/ct/vaultwarden.sh
+++ b/ct/vaultwarden.sh
@@ -42,11 +42,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -70,7 +67,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -86,11 +82,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -114,7 +107,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -131,11 +123,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -159,7 +148,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/wireguard.sh b/ct/wireguard.sh
index e6774094..7137c4d3 100644
--- a/ct/wireguard.sh
+++ b/ct/wireguard.sh
@@ -40,11 +40,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -68,7 +65,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -84,11 +80,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -112,7 +105,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -129,11 +121,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -157,7 +146,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/zigbee2mqtt.sh b/ct/zigbee2mqtt.sh
index 9d0edba5..f4a0c0fd 100644
--- a/ct/zigbee2mqtt.sh
+++ b/ct/zigbee2mqtt.sh
@@ -42,11 +42,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -70,7 +67,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -86,11 +82,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -114,7 +107,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -131,11 +123,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -159,7 +148,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit
diff --git a/ct/zwavejs2mqtt.sh b/ct/zwavejs2mqtt.sh
index 65034e6c..72669df9 100644
--- a/ct/zwavejs2mqtt.sh
+++ b/ct/zwavejs2mqtt.sh
@@ -43,11 +43,8 @@ option_picked(){
     printf " ${YW}${message1}${CL}\n"
 }
 show_menu
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -71,7 +68,6 @@ while [ $opt != '' ]
             show_menu;
         ;;
       esac
-    fi
   done
 show_menu2(){
     printf "    ${YW} 1)${GN} Use Automatic Login ${CL}\n"
@@ -87,11 +83,8 @@ option_picked(){
     printf " ${YW}${message2}${CL}\n"
 }
 show_menu2
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -115,7 +108,6 @@ while [ $opt != '' ]
             show_menu2;
         ;;
       esac
-    fi
   done
 show_menu3(){
     printf "    ${YW} 1)${GN} Automatic DHCP ${CL}\n"
@@ -132,11 +124,8 @@ option_picked(){
     printf " ${YW}${message3}${CL}\n"
 }
 show_menu3
-while [ $opt != '' ]
+while [ "$opt" != " " ]
     do
-    if [ $opt = '' ]; then
-      exit;
-    else
       case $opt in
         1) clear;
             header_info;
@@ -160,7 +149,6 @@ while [ $opt != '' ]
             show_menu3;
         ;;
       esac
-    fi
   done
 
 set -o errexit