diff --git a/home/bin/spawn-once b/home/bin/spawn-once
new file mode 100755
index 0000000..ce64c7d
--- /dev/null
+++ b/home/bin/spawn-once
@@ -0,0 +1,4 @@
+#!/bin/sh
+if ! ps cx|grep "$1\$" >> /dev/null; then
+    exec $@
+fi