diff --git bin/check-env.sh bin/check-env.sh
index 79076f9..881e4e4 100644
--- bin/check-env.sh
+++ bin/check-env.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #
 # Licensed to the Apache Software Foundation (ASF) under one or more
diff --git bin/find-hbase-dependency.sh bin/find-hbase-dependency.sh
index 9e49b6f..03ab2a1 100644
--- bin/find-hbase-dependency.sh
+++ bin/find-hbase-dependency.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 
 #
@@ -38,4 +38,4 @@ fi
 
 hbase_dependency=${hbase_common_path}
 echo "hbase dependency: $hbase_dependency"
-export hbase_dependency
\ No newline at end of file
+export hbase_dependency
diff --git bin/find-hive-dependency.sh bin/find-hive-dependency.sh
index d8accfc..bcb2207 100644
--- bin/find-hive-dependency.sh
+++ bin/find-hive-dependency.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #
 # Licensed to the Apache Software Foundation (ASF) under one or more
diff --git bin/kylin.sh bin/kylin.sh
index 46c640f..9ba0900 100644
--- bin/kylin.sh
+++ bin/kylin.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #
 # Licensed to the Apache Software Foundation (ASF) under one or more
diff --git bin/performance-monitor.sh bin/performance-monitor.sh
index 9004c02..4d30364 100644
--- bin/performance-monitor.sh
+++ bin/performance-monitor.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #
 # Licensed to the Apache Software Foundation (ASF) under one or more
@@ -35,4 +35,4 @@
 
     hbase \
     org.apache.hadoop.util.RunJar $KYLIN_HOME/lib/${_monitorjar} org.apache.kylin.monitor.Client
-    exit 0
\ No newline at end of file
+    exit 0
diff --git bin/sample.sh bin/sample.sh
index fbad7fd..4843529 100644
--- bin/sample.sh
+++ bin/sample.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #
 # Licensed to the Apache Software Foundation (ASF) under one or more
@@ -26,4 +26,4 @@ hive -f ${KYLIN_HOME}/sample_cube/create_sample_tables.sql  || { exit 1; }
 echo "Sample hive tables are created successfully; Going to create sample cube..."
 cd ${KYLIN_HOME}
 hbase org.apache.hadoop.util.RunJar ${job_jar} org.apache.kylin.common.persistence.ResourceTool upload ${KYLIN_HOME}/sample_cube/metadata  || { exit 1; }
-echo "Sample cube is created successfully in project 'learn_kylin'; Restart Kylin server or reload the metadata from web UI to see the change."
\ No newline at end of file
+echo "Sample cube is created successfully in project 'learn_kylin'; Restart Kylin server or reload the metadata from web UI to see the change."
diff --git script/build.sh script/build.sh
index 4c5f5d8..de1f990 100755
--- script/build.sh
+++ script/build.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
diff --git script/compress.sh script/compress.sh
index ff606bc..89cb9e8 100755
--- script/compress.sh
+++ script/compress.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
diff --git script/download-tomcat.sh script/download-tomcat.sh
index f43d202..c1c2677 100755
--- script/download-tomcat.sh
+++ script/download-tomcat.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
diff --git script/prepare.sh script/prepare.sh
index f0702f8..8c5a162 100755
--- script/prepare.sh
+++ script/prepare.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
@@ -53,4 +53,4 @@ for f in * .[^.]*
 do
     echo "Adding $f to war"
     jar -uf ../../tomcat/webapps/kylin.war $f
-done
\ No newline at end of file
+done