diff --git a/sh/core/code.awk b/sh/core/code.awk
index 3cfbc70..e910883 100644
--- a/sh/core/code.awk
+++ b/sh/core/code.awk
@@ -334,6 +334,9 @@ if (action == "doc") {
 		unique[extract($0, target)] = ""
 	}
 
+# lint
+} else if (action == "lint") {
+
 # unknown
 } else {
 	print "unknown action: " action
diff --git a/sh/lint/gawk.sh b/sh/lint/gawk.sh
new file mode 100644
index 0000000..67aad01
--- /dev/null
+++ b/sh/lint/gawk.sh
@@ -0,0 +1,12 @@
+# gawk
+
+#| gawk
+rwx_gawk_lint() {
+	local file="${1}"
+	echo |
+		gawk \
+			--posix \
+			--lint="fatal" \
+			--file "${file}" \
+			--assign action="lint"
+}