From b0ba1ff0c60e80296ba4a9b6e1912689420eb3e4 Mon Sep 17 00:00:00 2001
From: Medya Gh <medya@google.com>
Date: Tue, 10 Dec 2019 15:43:43 -0800
Subject: [PATCH] use tail instead of bc for div

---
 hack/jenkins/common.sh | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/hack/jenkins/common.sh b/hack/jenkins/common.sh
index ceb9c32dc9..60002060c2 100755
--- a/hack/jenkins/common.sh
+++ b/hack/jenkins/common.sh
@@ -280,9 +280,12 @@ else
   echo "minikube: FAIL"
 fi
 
+## caclucate the time took to finish running e2e binary test.
 e2e_end_time="$(date -u +%s)"
 elapsed=$(($e2e_end_time-$e2e_start_time))
-elapsed=$(bc <<< "scale=2;$elapsed/60")
+min=$(($elapsed/60))
+sec=$(tail -c 3 <<< $((${elapsed}00/60)))
+elapsed=$min.$sec
 description="completed with ${status} in ${elapsed} minute(s)."
 echo $description