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-rwxr-xr-xscript/random-sleep.sh21
1 files changed, 21 insertions, 0 deletions
diff --git a/script/random-sleep.sh b/script/random-sleep.sh
new file mode 100755
index 0000000000..70b0c03ec9
--- /dev/null
+++ b/script/random-sleep.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+#
+
+if [ $# -lt 2 ]; then
+ echo "$0: <low> <high>"
+ exit 1;
+fi
+
+l=$1
+h=$2
+
+s=$(expr $h - $l)
+
+r=$(head --bytes=2 /dev/urandom | od -l | head -n 1 | sed -e 's/^[^ ]* *//')
+
+v=$(expr $r % $s)
+d=$(expr $l + $v)
+
+echo "$0: sleep $d ... start"
+#sleep $d
+echo "$0: sleep $d ... end"