Fixed read. Added upgrade flag

install.sh

@@ -5,10 +5,17 @@ REPO="https://api.github.com/repos/itdoginfo/podkop/releases/latest"
 IS_SHOULD_RESTART_NETWORK=
 DOWNLOAD_DIR="/tmp/podkop"
 COUNT=3
+UPGRADE=0
 
 rm -rf "$DOWNLOAD_DIR"
 mkdir -p "$DOWNLOAD_DIR"
 
+for arg in "$@"; do
+    if [ "$arg" = "--upgrade" ]; then
+        UPGRADE=1
+    fi
+done
+
 main() {
     check_system
     sing_box
@@ -16,12 +23,16 @@ main() {
     opkg update
   
     if [ -f "/etc/init.d/podkop" ]; then
-        printf "\033[32;1mPodkop is already installed. Just upgrade it? (y/n)\033[0m\n"
+        if [ "$UPGRADE" -eq 1 ]; then
+            echo "Upgraded podkop with flag..."
+        else
+            printf "\033[32;1mPodkop is already installed. Just upgrade it?\033[0m\n"
             printf "\033[32;1my - Only upgrade podkop\033[0m\n"
             printf "\033[32;1mn - Upgrade and install tunnels (WG, AWG, OpenVPN, OC)\033[0m\n"
 
             while true; do
-            read -r -p '' UPDATE
+                printf "\033[32;1mEnter (y/n): \033[0m"
+                read -r '' UPDATE
                 case $UPDATE in
                 y)
                     echo "Upgraded podkop..."
@@ -38,6 +49,7 @@ main() {
                     ;;
                 esac
             done
+        fi
     else
         echo "Installed podkop..."
         add_tunnel