From 785bae0677e4dd06eefa2c51f2bf43976452d44c Mon Sep 17 00:00:00 2001
From: heya02 <heya02@baidu.com>
Date: Tue, 4 Aug 2020 11:22:18 +0000
Subject: [PATCH] bug_fix

---
 python/paddle_fl/mpc/examples/mnist_demo/run_standalone.sh | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/python/paddle_fl/mpc/examples/mnist_demo/run_standalone.sh b/python/paddle_fl/mpc/examples/mnist_demo/run_standalone.sh
index 932d8cf..df68840 100755
--- a/python/paddle_fl/mpc/examples/mnist_demo/run_standalone.sh
+++ b/python/paddle_fl/mpc/examples/mnist_demo/run_standalone.sh
@@ -64,12 +64,14 @@ $REDIS_BIN -h $SERVER -p $PORT flushall
 
 # remove temp data generated in last time
 PRED_FILE="/tmp/mnist_output_prediction.*"
-if [ "$PRED_FILE" ]; then
+ls ${PRED_FILE}
+if [ $? -eq 0 ]; then
         rm -rf $PRED_FILE
 fi
 
 TRAINING_FILE="/tmp/mnist2_feature.part*"
-if [ ! "$TRAINING_FILE" ]; then
+ls ${TRAINING_FILE}
+if [ $? -ne 0 ]; then
     echo "There is no data in /tmp, please prepare data with "python prepare.py" firstly"
     exit 1
 else
-- 
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