diff --git a/hc.sh b/hc.sh
new file mode 100644
index 0000000..86b69b0
--- /dev/null
+++ b/hc.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+DELTA=600
+SFILE=/tmp/hc.timestamp
+if [ -f $SFILE ] && [ $(expr $(date +%s) - $(stat -c %Y $SFILE)) -lt $DELTA ]; then
+        exit 0
+else
+        exit 1
+fi