[Modify the use of sudo commands]

packaging/deb/DEBIAN/preinst

 #!/bin/bash
 
+csudo=""
+if command -v sudo > /dev/null; then
+    csudo="sudo"
+fi
+
 function is_using_systemd() {
     if pidof systemd &> /dev/null; then
         return 0
@@ -11,9 +16,9 @@ function is_using_systemd() {
 # Stop the service if running
 if pidof taosd &> /dev/null; then
     if is_using_systemd; then
-        sudo systemctl stop taosd || :
+        ${csudo} systemctl stop taosd || :
     else
-        sudo service taosd stop || :
+        ${csudo} service taosd stop || :
     fi
     echo "Stop taosd service success!"
     sleep 1
@@ -23,6 +28,6 @@ fi
 cfg_install_dir="/etc/taos"
 install_main_dir="/usr/local/taos"
 if [ -f ${cfg_install_dir}/taos.cfg ]; then
-    sudo rm -f ${install_main_dir}/cfg/taos.cfg   || :
+    ${csudo} rm -f ${install_main_dir}/cfg/taos.cfg   || :
 fi