diff --git a/bin/portuser b/bin/portuser
new file mode 100755
index 0000000..fb7d6b8
--- /dev/null
+++ b/bin/portuser
@@ -0,0 +1,6 @@
+#!/bin/bash
+if [ -z "$1" ]; then
+  echo "Provide a TCP port number"
+else
+  sudo fuser -v $1/tcp
+fi