diff --git a/1_setup_docker_apt_repo.sh b/1_setup_docker_apt_repo.sh
index f60019d..098bbf4 100755
--- a/1_setup_docker_apt_repo.sh
+++ b/1_setup_docker_apt_repo.sh
@@ -1,17 +1,17 @@
 #!/bin/bash
 
-# REF:https://docs.docker.com/engine/install/debian/#install-using-the-repository 
+# REF:https://docs.docker.com/engine/install/debian/#install-using-the-repository
 
 # Add Docker's official GPG key:
-sudo apt-get update
-sudo apt-get install ca-certificates curl gnupg
-sudo install -m 0755 -d /etc/apt/keyrings
-curl -fsSL https://download.docker.com/linux/debian/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
-sudo chmod a+r /etc/apt/keyrings/docker.gpg
+apt-get update
+apt-get install ca-certificates curl gnupg
+install -m 0755 -d /etc/apt/keyrings
+curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg
+chmod a+r /etc/apt/keyrings/docker.gpg
 
 # Add the repository to Apt sources:
 echo \
   "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian \
   "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | \
-  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
-sudo apt-get update
+  tee /etc/apt/sources.list.d/docker.list > /dev/null
+apt-get update
diff --git a/2_install_docker_pkgs.sh b/2_install_docker_pkgs.sh
index 6897f9c..d6228c8 100755
--- a/2_install_docker_pkgs.sh
+++ b/2_install_docker_pkgs.sh
@@ -1,6 +1,3 @@
 #!/bin/bash
 
-sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
-docker run hello-world
-
-
+apt-get install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin