diff --git a/.gitignore b/.gitignore
index c74296f..8ffe951 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,3 @@
-*.un~
 *.exe
 *~
 *.out
diff --git a/makefile.sh b/makefile.sh
new file mode 100644
index 0000000..ef2dd74
--- /dev/null
+++ b/makefile.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+
+find . -type f -name "Makefile" | while read -r file; do
+    echo "Processing file: $file"
+
+    tmp_file=$(mktemp)
+
+    sed -e 's/a\.exe/\.\/a\.out/g' \
+        -e 's/\<del\>/rm/g' \
+        -e 's/\-lssp//g' "$file" > "$tmp_file"
+
+    mv "$tmp_file" "$file"
+    echo "File $file processed."
+done
+
+echo "All Makefiles processed."