diff --git a/debian-add-user.sh b/debian-add-user.sh
index 93b0a33..a5ee32b 100755
--- a/debian-add-user.sh
+++ b/debian-add-user.sh
@@ -1,5 +1,6 @@
 echo "Usage: setup.sh [USER]"
 echo "Example: setup.sh alice"
+echo
 
 NewUser=$1
 while [ ! "$NewUser" ]
@@ -22,7 +23,7 @@ sed -i "s|/home/$NewUser:/bin/sh$|/home/$NewUser:/bin/bash|g" /etc/passwd
 # Debian 9 default to empty
 sed -i "s|/home/$NewUser:$|/home/$NewUser:/bin/bash|g" /etc/passwd
 
-echo "=== Allow the new user $NewUser to sudo without password? <y> for yes, <anything else> for no"
+echo "=== Allow the new user [$NewUser] to sudo without password? <y> for yes, <anything else> for no"
 read -p ">>> " AllowSudo
 if [ "$AllowSudo" == "y" ]
 then
@@ -35,7 +36,7 @@ else
 fi
 echo
 
-echo "=== Configure $NewUser home with standard scripts? <y> for yes, <anything else> for no"
+echo "=== Configure $NewUser's home with standard scripts? <y> for yes, <anything else> for no"
 read -p ">>> " ConfigHome
 if [ "$ConfigHome" == 'y' ]
 then
diff --git a/debian-config.sh b/debian-config.sh
index 6965bc9..0c39337 100755
--- a/debian-config.sh
+++ b/debian-config.sh
@@ -2,7 +2,7 @@
 
 echo "Usage: this.sh [NewUser]"
 echo "Example: this.sh alice"
-echo " curl https://git.faronear.org/fon/sysconfig/raw/branch/main/debian-config.sh | bash"
+echo "curl https://git.faronear.org/fon/sysconfig/raw/branch/main/debian-config.sh | sudo bash"
 
 if [ v$1 != v ]
 then
@@ -50,7 +50,7 @@ then
 fi
 echo 
 
-echo "=== Configure /etc/sudoers"
+echo "=== Configure /etc/sudoers: includedir /etc/sudoers.d"
 chmod o+w /etc/sudoers
 #sed -i "s|%sudo\s\+ALL=(ALL:ALL)\sALL|%sudo\tALL=(ALL:ALL) NOPASSWD:ALL|g" /etc/sudoers  # allow all users in %sudo group to sudo without password
 sed -i "s|#includedir /etc/sudoers.d|@includedir /etc/sudoers.d|g" /etc/sudoers  # allow users in /etc/sudoers.d/ folder to sudo
@@ -75,15 +75,15 @@ fi
 echo
 
 echo "=== Configure autostart"
-if [ -f /etc/rc.local ]
+if [ ! -f /etc/rc.local ]
 then
-  mv /etc/rc.local /etc/rc.local.backup
+  echo '#!/bin/bash' > /etc/rc.local # can't omit, otherwise you can't launch pm2 in autostart.sh. Don't use double quote here, otherwise error.
 fi
-touch /etc/rc.local
 chmod +x /etc/rc.local
-echo '#!/bin/bash' > /etc/rc.local # can't omit, otherwise you can't launch pm2 in autostart.sh. Don't use double quote here, otherwise error.
-echo 'source /faronear/autostart.sh' >> /etc/rc.local # make sure to sudo pm2 in autostart.sh, otherwise pm2 list can't find it as root.
+
+echo 'source /faronear/autostart.sh' >> /etc/rc.local
 touch /faronear/autostart.sh
+echo "# make sure to sudo in autostart.sh, otherwise for example pm2 list can't find it as root." >> /faronear/autostart.sh
 chmod +x /faronear/autostart.sh
 echo 'Autostart is set to /faronear/autostart.sh. Run "systemctl start/stop/status rc-local" to manage it.'
 echo
diff --git a/expect-ssh2server.sh b/expect-ssh2server.sh
index 536725d..27a4dee 100755
--- a/expect-ssh2server.sh
+++ b/expect-ssh2server.sh
@@ -39,22 +39,22 @@ then
   read -p "Enter root password (YU) >>" PWD_ROOT
   expect ~/faronear/fon/sysconfig/expect-ssh.sh $targetUrl adot $PWD_ADOT $PWD_ADOT
 else
-  while [ "$HOST" ]
+  while [ ! "$HOST" ]
   do
   read -p "host = " HOST
   done
 
-  while [ "$USER" ]
+  while [ ! "$USER" ]
   do
     read -p "user = " USER
   done
   
-  while [ "$PWD_USER" ]
+  while [ ! "$PWD_USER" ]
   do
     read -p "user password = " PWD_USER
   done
 
-  while [ "$PWD_SU" ]
+  while [ ! "$PWD_SU" ]
   do
     read -p "root password = " ROOT_SU
   done
diff --git a/home-config.sh b/home-config.sh
index 5695ac5..49d68d0 100755
--- a/home-config.sh
+++ b/home-config.sh
@@ -36,7 +36,7 @@ if [ "$2" ]
 then
   HomePath=/home/$2
 else
-  HomePath=~
+  HomePath=/root
 fi
 
 if [ -d "$HomePath" ]
@@ -48,7 +48,10 @@ then
   read -p ">>> " CopyOrLinkScripts
   for homescript in $homescriptlist
   do
-    mv $homescript $homescript.backup-$(date +%Y%m%d%H%M%S)
+    if [ -e "$homescript" ]
+    then
+      mv $homescript $homescript.backup-$(date +%Y%m%d%H%M%S)
+    fi
     if [ "$CopyOrLinkScripts" = 'l' ]
     then
       echo "--- Linking $SourcePath/$homescript to $HomePath/$homescript ..."