Add Github Actions CI workflow for bash scripts

.github/workflows/cI.yml

@@ -0,0 +1,41 @@
+name: Bash Scripts CI
+
+# This workflow runs every time code is pushed to main
+# and ever time a pull request targets main
+on:
+
+   push:
+     branches: [ main ]
+   pull_request:
+     branches: [ main ]
+
+ jobs:
+   test-scripts:
+      # Github provides a fresh Ubuntu virtual machine for this job
+      runs-on: ubuntu-latest
+
+      steps:
+          # Download the repository code onto the virtual machine
+          # Without this step, the runner has no files to work with
+          - name: Checkout repository
+            uses: actions/checkout@v4
+
+          # Step 2: Make all test scripts executable
+          # The runner is a fresh machine - it doesn't inherit permission from >
+            run: chmod +x scripts/*.sh
+
+          # Step 3: Run disk-check.sh and check its exit code
+          # If the exit code is 0, the test passes
+          # If the exit code is not 0, the test fails
+          - name: Run disk-check
+             run: bash scripts/disk-check.sh
+
+          # Step 4: Run key-hunter
+          - name: Run key-hunter
+             run: bash scripts/key-hunter.sh
+
+          # Step 5: Run ram-check
+          - name: Run ram-check
+             run: bash scripts/ram-check.sh
+
+