diff --git a/.github/workflows/shell-check.yml b/.github/workflows/shell-check.yml
new file mode 100644
index 00000000..857be446
--- /dev/null
+++ b/.github/workflows/shell-check.yml
@@ -0,0 +1,15 @@
+name: ShellCheck
+
+on: 
+  pull_request:
+    branches: ["main"]
+
+jobs:
+  shellcheck:
+    name: ShellCheck
+    runs-on: ubuntu-latest
+    steps: 
+      - uses: actions/checkout@v3
+      - name: Run ShellCheck
+        uses: ludeeus/action-shellcheck@master
+      
diff --git a/tools/generate-main-readme.sh b/tools/generate-main-readme.sh
index da288fab..0e58b181 100644
--- a/tools/generate-main-readme.sh
+++ b/tools/generate-main-readme.sh
@@ -1,3 +1,4 @@
+#!/bin/bash
 pwd
 # Todo: Auto update content of main README.md file
-echo "hehe, to be implemented"
\ No newline at end of file
+echo "hehe, to be implemented"
diff --git a/topics/ansible/with-docker/ansible-practice.sh b/topics/ansible/with-docker/ansible-practice.sh
index dedf75f2..30cf3a86 100644
--- a/topics/ansible/with-docker/ansible-practice.sh
+++ b/topics/ansible/with-docker/ansible-practice.sh
@@ -1,3 +1,4 @@
+#!/bin/bash
 echo ">>> Building ansible runner..."
 docker build -t ansible-runner -f AnsibleEnv.dockerfile .
 echo ">>> Execute ansible playbook (ping google)..."
diff --git a/topics/k8s/k8s-helloworld-cleanup.sh b/topics/k8s/k8s-helloworld-cleanup.sh
index 4a0ac34e..1dba27c4 100644
--- a/topics/k8s/k8s-helloworld-cleanup.sh
+++ b/topics/k8s/k8s-helloworld-cleanup.sh
@@ -1,3 +1,4 @@
+#!/bin/bash
 console_log() {
   echo ">>> [Kubernetes] $1"
 }