diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 0000000..69bd789
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,10 @@
+# Run shellcheck on all shell files in this repository
+name: shellcheck
+on: [push, pull_request]
+jobs:
+  shellcheck:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: shellcheck
+      uses: bewuethr/shellcheck-action@v1