diff --git a/script.sh b/script.sh
new file mode 100755
index 0000000..d4e828e
--- /dev/null
+++ b/script.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+fff_len=`cat fff.h | wc -l`
+# test/fff_test_c.c
+gcc -E test/fff_test_c.c > out
+comm -13 <(sort < fff.h | uniq) <(sort < out | uniq) > unique_to_out      # strip out fff.h include
+awk 'FNR==NR{a[$1];next}($1 in a){print}'  unique_to_out fff.h > matched  # find unique matches
+grep -Fxf  <(sort < matched | uniq) <(sort < fff.h | uniq) > coverage     # find coverage of matches in fff.h
+cov_len=`cat coverage | wc -l`
+echo "test/fff_test_c.c coverage:"
+echo "$cov_len / $fff_len" | bc  -l
+
+# test/fff_test_cpp.cpp
+gcc -E test/fff_test_cpp.cpp -I . > out
+comm -13 <(sort < fff.h | uniq) <(sort < out | uniq) > unique_to_out
+awk 'FNR==NR{a[$1];next}($1 in a){print}'  unique_to_out fff.h > matched
+grep -Fxf  <(sort < matched | uniq) <(sort < fff.h | uniq) > coverage
+cov_len_2=`cat coverage | wc -l`
+echo "test/fff_test_cpp.cpp coverage:"
+echo "$cov_len_2 / $fff_len" | bc  -l
+
+# total coverage
+echo "TOTAL COVERAGE:"
+echo "($cov_len + $cov_len_2) / ($fff_len * 2)" | bc -l