diff --git a/model_zoo/research/cv/FaceDetection/scripts/run_distribute_train.sh b/model_zoo/research/cv/FaceDetection/scripts/run_distribute_train.sh
index 70f4c9a62b..a025cfbb2e 100644
--- a/model_zoo/research/cv/FaceDetection/scripts/run_distribute_train.sh
+++ b/model_zoo/research/cv/FaceDetection/scripts/run_distribute_train.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2020 Huawei Technologies Co., Ltd
+# Copyright 2020-2021 Huawei Technologies Co., Ltd
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,11 +14,11 @@
 # limitations under the License.
 # ============================================================================
 
-if [ $# != 2 -a $# != 3 ]
+if [ $# != 2 ] && [ $# != 3 ]
 then
     echo "Usage: sh run_distribute_train.sh [MINDRECORD_FILE] [RANK_TABLE] [PRETRAINED_BACKBONE]"
     echo "   or: sh run_distribute_train.sh [MINDRECORD_FILE] [RANK_TABLE]"
-exit 1
+    exit 1
 fi
 
 get_real_path(){
@@ -32,7 +32,7 @@ get_real_path(){
 current_exec_path=$(pwd)
 echo ${current_exec_path}
 
-dirname_path=$(dirname $(pwd))
+dirname_path=$(dirname "$(pwd)")
 echo ${dirname_path}
 
 export PYTHONPATH=${dirname_path}:$PYTHONPATH
diff --git a/model_zoo/research/cv/FaceDetection/scripts/run_eval.sh b/model_zoo/research/cv/FaceDetection/scripts/run_eval.sh
index 4626b887a0..c050db29a1 100644
--- a/model_zoo/research/cv/FaceDetection/scripts/run_eval.sh
+++ b/model_zoo/research/cv/FaceDetection/scripts/run_eval.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2020 Huawei Technologies Co., Ltd
+# Copyright 2020-2021 Huawei Technologies Co., Ltd
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -17,7 +17,7 @@
 if [ $# != 3 ]
 then
     echo "Usage: sh run_eval.sh [MINDRECORD_FILE] [USE_DEVICE_ID] [PRETRAINED_BACKBONE]"
-exit 1
+    exit 1
 fi
 
 get_real_path(){
@@ -31,7 +31,7 @@ get_real_path(){
 current_exec_path=$(pwd)
 echo ${current_exec_path}
 
-dirname_path=$(dirname $(pwd))
+dirname_path=$(dirname "$(pwd)")
 echo ${dirname_path}
 
 export PYTHONPATH=${dirname_path}:$PYTHONPATH
diff --git a/model_zoo/research/cv/FaceDetection/scripts/run_export.sh b/model_zoo/research/cv/FaceDetection/scripts/run_export.sh
index 6c5c965171..a69475a6a7 100644
--- a/model_zoo/research/cv/FaceDetection/scripts/run_export.sh
+++ b/model_zoo/research/cv/FaceDetection/scripts/run_export.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2020 Huawei Technologies Co., Ltd
+# Copyright 2020-2021 Huawei Technologies Co., Ltd
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -17,7 +17,7 @@
 if [ $# != 3 ]
 then
     echo "Usage: sh run_export.sh [BATCH_SIZE] [USE_DEVICE_ID] [PRETRAINED_BACKBONE]"
-exit 1
+    exit 1
 fi
 
 get_real_path(){
@@ -31,7 +31,7 @@ get_real_path(){
 current_exec_path=$(pwd)
 echo ${current_exec_path}
 
-dirname_path=$(dirname $(pwd))
+dirname_path=$(dirname "$(pwd)")
 echo ${dirname_path}
 
 export PYTHONPATH=${dirname_path}:$PYTHONPATH
diff --git a/model_zoo/research/cv/FaceDetection/scripts/run_standalone_train.sh b/model_zoo/research/cv/FaceDetection/scripts/run_standalone_train.sh
index f3255db541..da388e3f85 100644
--- a/model_zoo/research/cv/FaceDetection/scripts/run_standalone_train.sh
+++ b/model_zoo/research/cv/FaceDetection/scripts/run_standalone_train.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2020 Huawei Technologies Co., Ltd
+# Copyright 2020-2021 Huawei Technologies Co., Ltd
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,11 +14,11 @@
 # limitations under the License.
 # ============================================================================
 
-if [ $# != 2 -a $# != 3 ]
+if [ $# != 2 ] && [ $# != 3 ]
 then
     echo "Usage: sh run_standalone_train.sh [MINDRECORD_FILE] [USE_DEVICE_ID] [PRETRAINED_BACKBONE]"
     echo "   or: sh run_standalone_train.sh [MINDRECORD_FILE] [USE_DEVICE_ID]"
-exit 1
+    exit 1
 fi
 
 get_real_path(){
@@ -32,7 +32,7 @@ get_real_path(){
 current_exec_path=$(pwd)
 echo ${current_exec_path}
 
-dirname_path=$(dirname $(pwd))
+dirname_path=$(dirname "$(pwd)")
 echo ${dirname_path}
 
 export PYTHONPATH=${dirname_path}:$PYTHONPATH
diff --git a/model_zoo/research/cv/FaceQualityAssessment/scripts/run_distribute_train.sh b/model_zoo/research/cv/FaceQualityAssessment/scripts/run_distribute_train.sh
index 7fb7358fe2..d745186306 100644
--- a/model_zoo/research/cv/FaceQualityAssessment/scripts/run_distribute_train.sh
+++ b/model_zoo/research/cv/FaceQualityAssessment/scripts/run_distribute_train.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2020 Huawei Technologies Co., Ltd
+# Copyright 2020-2021 Huawei Technologies Co., Ltd
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,11 +14,11 @@
 # limitations under the License.
 # ============================================================================
 
-if [ $# != 2 -a $# != 3 ]
+if [ $# != 2 ] && [ $# != 3 ]
 then
     echo "Usage: sh run_distribute_train.sh [TRAIN_LABEL_FILE] [RANK_TABLE] [PRETRAINED_BACKBONE]"
     echo "   or: sh run_distribute_train.sh [TRAIN_LABEL_FILE] [RANK_TABLE]"
-exit 1
+    exit 1
 fi
 
 get_real_path(){
@@ -32,7 +32,7 @@ get_real_path(){
 current_exec_path=$(pwd)
 echo ${current_exec_path}
 
-dirname_path=$(dirname $(pwd))
+dirname_path=$(dirname "$(pwd)")
 echo ${dirname_path}
 
 export PYTHONPATH=${dirname_path}:$PYTHONPATH
diff --git a/model_zoo/research/cv/FaceQualityAssessment/scripts/run_eval.sh b/model_zoo/research/cv/FaceQualityAssessment/scripts/run_eval.sh
index 59378228b2..89417082ba 100644
--- a/model_zoo/research/cv/FaceQualityAssessment/scripts/run_eval.sh
+++ b/model_zoo/research/cv/FaceQualityAssessment/scripts/run_eval.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2020 Huawei Technologies Co., Ltd
+# Copyright 2020-2021 Huawei Technologies Co., Ltd
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -17,7 +17,7 @@
 if [ $# != 3 ]
 then
     echo "Usage: sh run_eval.sh [EVAL_DIR] [USE_DEVICE_ID] [PRETRAINED_BACKBONE]"
-exit 1
+    exit 1
 fi
 
 get_real_path(){
@@ -31,7 +31,7 @@ get_real_path(){
 current_exec_path=$(pwd)
 echo ${current_exec_path}
 
-dirname_path=$(dirname $(pwd))
+dirname_path=$(dirname "$(pwd)")
 echo ${dirname_path}
 
 export PYTHONPATH=${dirname_path}:$PYTHONPATH
diff --git a/model_zoo/research/cv/FaceQualityAssessment/scripts/run_export.sh b/model_zoo/research/cv/FaceQualityAssessment/scripts/run_export.sh
index 6c5c965171..a69475a6a7 100644
--- a/model_zoo/research/cv/FaceQualityAssessment/scripts/run_export.sh
+++ b/model_zoo/research/cv/FaceQualityAssessment/scripts/run_export.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2020 Huawei Technologies Co., Ltd
+# Copyright 2020-2021 Huawei Technologies Co., Ltd
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -17,7 +17,7 @@
 if [ $# != 3 ]
 then
     echo "Usage: sh run_export.sh [BATCH_SIZE] [USE_DEVICE_ID] [PRETRAINED_BACKBONE]"
-exit 1
+    exit 1
 fi
 
 get_real_path(){
@@ -31,7 +31,7 @@ get_real_path(){
 current_exec_path=$(pwd)
 echo ${current_exec_path}
 
-dirname_path=$(dirname $(pwd))
+dirname_path=$(dirname "$(pwd)")
 echo ${dirname_path}
 
 export PYTHONPATH=${dirname_path}:$PYTHONPATH
diff --git a/model_zoo/research/cv/FaceQualityAssessment/scripts/run_standalone_train.sh b/model_zoo/research/cv/FaceQualityAssessment/scripts/run_standalone_train.sh
index 5667e82932..682ea45109 100644
--- a/model_zoo/research/cv/FaceQualityAssessment/scripts/run_standalone_train.sh
+++ b/model_zoo/research/cv/FaceQualityAssessment/scripts/run_standalone_train.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2020 Huawei Technologies Co., Ltd
+# Copyright 2020-2021 Huawei Technologies Co., Ltd
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,11 +14,11 @@
 # limitations under the License.
 # ============================================================================
 
-if [ $# != 2 -a $# != 3 ]
+if [ $# != 2 ] && [ $# != 3 ]
 then
     echo "Usage: sh run_standalone_train.sh [TRAIN_LABEL_FILE] [USE_DEVICE_ID] [PRETRAINED_BACKBONE]"
     echo "   or: sh run_standalone_train.sh [TRAIN_LABEL_FILE] [USE_DEVICE_ID]"
-exit 1
+    exit 1
 fi
 
 get_real_path(){
@@ -32,7 +32,7 @@ get_real_path(){
 current_exec_path=$(pwd)
 echo ${current_exec_path}
 
-dirname_path=$(dirname $(pwd))
+dirname_path=$(dirname "$(pwd)")
 echo ${dirname_path}
 
 export PYTHONPATH=${dirname_path}:$PYTHONPATH
diff --git a/model_zoo/research/cv/FaceRecognitionForTracking/scripts/run_distribute_train.sh b/model_zoo/research/cv/FaceRecognitionForTracking/scripts/run_distribute_train.sh
index 6069e89fd3..b20251e25b 100644
--- a/model_zoo/research/cv/FaceRecognitionForTracking/scripts/run_distribute_train.sh
+++ b/model_zoo/research/cv/FaceRecognitionForTracking/scripts/run_distribute_train.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2020 Huawei Technologies Co., Ltd
+# Copyright 2020-2021 Huawei Technologies Co., Ltd
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,7 +14,7 @@
 # limitations under the License.
 # ============================================================================
 
-if [ $# != 2 -a $# != 3 ]
+if [ $# != 2 ] && [ $# != 3 ]
 then
     echo "Usage: sh run_distribute_train.sh [DATA_DIR] [RANK_TABLE] [PRETRAINED_BACKBONE]"
     echo "   or: sh run_distribute_train.sh [DATA_DIR] [RANK_TABLE]"
@@ -32,7 +32,7 @@ get_real_path(){
 current_exec_path=$(pwd)
 echo ${current_exec_path}
 
-dirname_path=$(dirname $(pwd))
+dirname_path=$(dirname "$(pwd)")
 echo ${dirname_path}
 
 export PYTHONPATH=${dirname_path}:$PYTHONPATH
@@ -85,4 +85,4 @@ do
         --pretrained=$PRETRAINED_BACKBONE > train.log  2>&1 &
 done
 
-echo 'running'
\ No newline at end of file
+echo 'running'
diff --git a/model_zoo/research/cv/FaceRecognitionForTracking/scripts/run_eval.sh b/model_zoo/research/cv/FaceRecognitionForTracking/scripts/run_eval.sh
index 06de8527f7..c4f14e89b7 100644
--- a/model_zoo/research/cv/FaceRecognitionForTracking/scripts/run_eval.sh
+++ b/model_zoo/research/cv/FaceRecognitionForTracking/scripts/run_eval.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2020 Huawei Technologies Co., Ltd
+# Copyright 2020-2021 Huawei Technologies Co., Ltd
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -17,7 +17,7 @@
 if [ $# != 3 ]
 then
     echo "Usage: sh run_eval.sh [EVAL_DIR] [USE_DEVICE_ID] [PRETRAINED_BACKBONE]"
-exit 1
+    exit 1
 fi
 
 get_real_path(){
@@ -31,7 +31,7 @@ get_real_path(){
 current_exec_path=$(pwd)
 echo ${current_exec_path}
 
-dirname_path=$(dirname $(pwd))
+dirname_path=$(dirname "$(pwd)")
 echo ${dirname_path}
 
 export PYTHONPATH=${dirname_path}:$PYTHONPATH
diff --git a/model_zoo/research/cv/FaceRecognitionForTracking/scripts/run_export.sh b/model_zoo/research/cv/FaceRecognitionForTracking/scripts/run_export.sh
index 6c5c965171..2f8a55d006 100644
--- a/model_zoo/research/cv/FaceRecognitionForTracking/scripts/run_export.sh
+++ b/model_zoo/research/cv/FaceRecognitionForTracking/scripts/run_export.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2020 Huawei Technologies Co., Ltd
+# Copyright 2020-201 Huawei Technologies Co., Ltd
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -17,7 +17,7 @@
 if [ $# != 3 ]
 then
     echo "Usage: sh run_export.sh [BATCH_SIZE] [USE_DEVICE_ID] [PRETRAINED_BACKBONE]"
-exit 1
+    exit 1
 fi
 
 get_real_path(){
@@ -31,7 +31,7 @@ get_real_path(){
 current_exec_path=$(pwd)
 echo ${current_exec_path}
 
-dirname_path=$(dirname $(pwd))
+dirname_path=$(dirname "$(pwd)")
 echo ${dirname_path}
 
 export PYTHONPATH=${dirname_path}:$PYTHONPATH
diff --git a/model_zoo/research/cv/FaceRecognitionForTracking/scripts/run_standalone_train.sh b/model_zoo/research/cv/FaceRecognitionForTracking/scripts/run_standalone_train.sh
index f0dfcf8cde..c8c4b45d54 100644
--- a/model_zoo/research/cv/FaceRecognitionForTracking/scripts/run_standalone_train.sh
+++ b/model_zoo/research/cv/FaceRecognitionForTracking/scripts/run_standalone_train.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2020 Huawei Technologies Co., Ltd
+# Copyright 2020-2021 Huawei Technologies Co., Ltd
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,7 +14,7 @@
 # limitations under the License.
 # ============================================================================
 
-if [ $# != 2 -a $# != 3 ]
+if [ $# != 2 ] && [ $# != 3 ]
 then
     echo "Usage: sh run_standalone_train.sh [DATA_DIR] [USE_DEVICE_ID] [PRETRAINED_BACKBONE]"
     echo "   or: sh run_standalone_train.sh [DATA_DIR] [USE_DEVICE_ID]"
@@ -32,7 +32,7 @@ get_real_path(){
 current_exec_path=$(pwd)
 echo ${current_exec_path}
 
-dirname_path=$(dirname $(pwd))
+dirname_path=$(dirname "$(pwd)")
 echo ${dirname_path}
 
 export PYTHONPATH=${dirname_path}:$PYTHONPATH
diff --git a/tests/runtest.sh b/tests/runtest.sh
index 412ee8c431..24db8d87df 100755
--- a/tests/runtest.sh
+++ b/tests/runtest.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2019 Huawei Technologies Co., Ltd
+# Copyright 2019-2021 Huawei Technologies Co., Ltd
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -16,7 +16,7 @@
 
 set -e
 
-CURRPATH=$(cd $(dirname $0); pwd)
+CURRPATH=$(cd "$(dirname $0)"; pwd)
 
 if [ $# -gt 0 ]; then
     if [ $1 == "python" ]; then
diff --git a/tests/ut/python/cachetests/cachetest.sh b/tests/ut/python/cachetests/cachetest.sh
index 8db7d12c40..5a6e7b9c45 100755
--- a/tests/ut/python/cachetests/cachetest.sh
+++ b/tests/ut/python/cachetests/cachetest.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2019 Huawei Technologies Co., Ltd
+# Copyright 2019-2021 Huawei Technologies Co., Ltd
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,7 +15,7 @@
 # ============================================================================
 
 # This script is the driver of the individual test scenarios
-CURRPATH=$(cd $(dirname $0); pwd)
+CURRPATH=$(cd "$(dirname $0)"; pwd)
 
 echo "----------------------------------------------"
 echo "Invalid syntax and cache_admin failure testing"
diff --git a/tests/ut/python/cachetests/cachetest_lib.sh b/tests/ut/python/cachetests/cachetest_lib.sh
index e9bfcfc775..25aa4b0005 100755
--- a/tests/ut/python/cachetests/cachetest_lib.sh
+++ b/tests/ut/python/cachetests/cachetest_lib.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2019 Huawei Technologies Co., Ltd
+# Copyright 2019-2021 Huawei Technologies Co., Ltd
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -18,9 +18,9 @@
 # test scenarios for cache op testing.
 
 # Set any path variables here
-CURRPATH=$(cd $(dirname $0); pwd)
-TESTPATH=$(cd ${CURRPATH}/../dataset; pwd)
-PROJECT_PATH=$(cd ${CURRPATH}/../../../..; pwd)
+CURRPATH=$(cd "$(dirname $0)"; pwd)
+TESTPATH=$(cd "${CURRPATH}/../dataset"; pwd)
+PROJECT_PATH=$(cd "${CURRPATH}/../../../../"; pwd)
 
 if [ "x${BUILD_PATH}" == "x" ]; then
    BUILD_PATH=${PROJECT_PATH}/build
@@ -64,7 +64,7 @@ MsgOk()
 
 #################################################################################
 #  Function: MsgFail                                                            #
-#  Description: Display intput msg with a red format for a failure              #
+#  Description: Display input msg with a red format for a failure              #
 #################################################################################
 MsgFail()
 {
@@ -154,11 +154,11 @@ CacheAdminCmd()
    fi
    result=$(${cmd} 2>&1)
    rc=$?
-   if [ ${expect_fail} -eq 0 -a ${rc} -ne 0 ]; then
+   if [ "${expect_fail}" -eq 0 ] && [ "${rc}" -ne 0 ]; then
       MsgFail "FAILED"
       MsgError "cache_admin command failure!" "${rc}" "${result}"
       return 1
-   elif [ ${expect_fail} -eq 1 -a ${rc} -eq 0 ]; then
+   elif [ "${expect_fail}" -eq 1 ] && [ "${rc}" -eq 0 ]; then
       MsgFail "FAILED"
       MsgError "Expected failure but got success!" "${rc}" "${result}"
       return 1
diff --git a/tests/ut/python/runtest_opensrc.sh b/tests/ut/python/runtest_opensrc.sh
index 852b8dd9a0..ec036a9494 100644
--- a/tests/ut/python/runtest_opensrc.sh
+++ b/tests/ut/python/runtest_opensrc.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2019 Huawei Technologies Co., Ltd
+# Copyright 2019-2021 Huawei Technologies Co., Ltd
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,7 +14,7 @@
 # limitations under the License.
 # ============================================================================
 
-CURRPATH=$(cd $(dirname $0); pwd)
+CURRPATH=$(cd "$(dirname $0)"; pwd)
 PROJECT_PATH=${CURRPATH}/../..
 if [ $BUILD_PATH ];then
     echo "BUILD_PATH = $BUILD_PATH"