diff --git a/script/docker-install.sh b/script/docker-install.sh
index f1dc27e..4e24e8f 100644
--- a/script/docker-install.sh
+++ b/script/docker-install.sh
@@ -1,3 +1,7 @@
+#/bin/bash
+
+set -e
+
 # delete old package
 for pkg in docker.io docker-doc docker-compose podman-docker containerd runc; do sudo apt-get remove $pkg; done
 
diff --git a/script/nvim-install.sh b/script/nvim-install.sh
index b44f705..b2d6e66 100644
--- a/script/nvim-install.sh
+++ b/script/nvim-install.sh
@@ -7,32 +7,31 @@ os_arch=$(uname -s)-$(uname -m)
 ver=v0.10.2
 
 case $os_arch in
-  "Darwin-x86_64")
-	cd /tmp
-	rm -rf nvim-macos-x86_64.tar.gz
-	wget https://github.com/neovim/neovim/releases/download/$ver/nvim-macos-x86_64.tar.gz
-	tar zxf nvim-macos-x86_64.tar.gz 
-	sudo mv -f /usr/local/nvim /usr/local/nvim-bak
-	sudo mv nvim-macos-x86_64 /usr/local/nvim
-	sudo ln -sf /usr/local/nvim/bin/nvim /usr/local/bin/vim
-	sudo ln -sf /usr/local/nvim/bin/nvim /usr/local/bin/nvim
-	echo ""
-	vim -v
-	;;
-  "Linux-x86_64"|"Linux-arm64")
-	cd /tmp
-	rm -rf nvim-linux64.tar.gz
-	wget https://github.com/neovim/neovim/releases/download/$ver/nvim-linux64.tar.gz
-	tar zxf nvim-linux64.tar.gz
-	sudo mv -f /usr/local/nvim /usr/local/nvim-bak
-	sudo mv nvim-linux64 /usr/local/nvim
-	sudo ln -sf /usr/local/nvim/bin/nvim /usr/local/bin/vim
-	sudo ln -sf /usr/local/nvim/bin/nvim /usr/local/bin/nvim
-	echo ""
-	vim -v
-	;;
+"Darwin-x86_64")
+    cd /tmp
+    rm -rf nvim-macos-x86_64.tar.gz
+    wget https://github.com/neovim/neovim/releases/download/$ver/nvim-macos-x86_64.tar.gz
+    tar zxf nvim-macos-x86_64.tar.gz
+    sudo mv -f /usr/local/nvim /usr/local/nvim-bak
+    sudo mv nvim-macos-x86_64 /usr/local/nvim
+    sudo ln -sf /usr/local/nvim/bin/nvim /usr/local/bin/vim
+    sudo ln -sf /usr/local/nvim/bin/nvim /usr/local/bin/nvim
+    echo ""
+    vim -v
+    ;;
+"Linux-x86_64" | "Linux-arm64")
+    cd /tmp
+    rm -rf nvim-linux64.tar.gz
+    wget https://github.com/neovim/neovim/releases/download/$ver/nvim-linux64.tar.gz
+    tar zxf nvim-linux64.tar.gz
+    [ -e /usr/local/nvim ] && sudo mv -f /usr/local/nvim /usr/local/nvim-bak
+    sudo mv nvim-linux64 /usr/local/nvim
+    sudo ln -sf /usr/local/nvim/bin/nvim /usr/local/bin/vim
+    sudo ln -sf /usr/local/nvim/bin/nvim /usr/local/bin/nvim
+    echo ""
+    vim -v
+    ;;
 esac
-        
-	
-
 
+# if has error "no c compile found"
+# sudo apt install build-essential