Show an example of when concatenating a string and an array is intended

SC2145.md

@@ -24,4 +24,31 @@ If the intention is to provide each array element as a separate argument, put th
 
 ### Exceptions
 
-None.
+```sh
+command_foo() {
+  echo "In foo"
+  echo "\$1 == $1 == aaa"
+  echo "\$2 == $2 == bbb"
+}
+
+command_bar() {
+  echo "In bar"
+}
+
+command_baz() {
+  echo "In baz"
+}
+
+main() {
+  case "$1" in
+    foo | bar | baz )
+      command_"$@"
+    ;;
+    * )
+      printf "Error: %s\n" "Unrecognized command"
+    ;;
+  esac
+}
+
+main foo aaa bbb
+```