Add watch-disk script

diff --git a/build/watch-disk b/build/watch-disk
new file mode 100755 (executable)
index 0000000..d338cb7
--- /dev/null
+++ b/build/watch-disk
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+cd /sys/block/hda/hda6
+
+while true; do cat stat; sleep 1.0; done | awk '{printf "%8d - %8d = %8d sect/s = %8d B/s\n", $7, l, $7-l, ($7-l)*512; l=$7; }'