diff --git a/docker/build/hooks/build b/docker/build/hooks/build
index 3276f167c4..6362fdd299 100644
--- a/docker/build/hooks/build
+++ b/docker/build/hooks/build
@@ -24,7 +24,8 @@ printenv
 if [ -z "${VERSION}" ]
 then
     echo "set default environment variable [VERSION]"
-    export VERSION=$(cat $(pwd)/pom.xml | grep '<version>' -m 1 | awk '{print $1}' | sed 's/<version>//' | sed 's/<\/version>//')
+    VERSION=$(grep '<version>' -m 1 "$(pwd)"/pom.xml | awk '{print $1}' | sed 's/<version>//' | sed 's/<\/version>//')
+    export VERSION
 fi
 
 if [ "${DOCKER_REPO}x" = "x" ]
@@ -44,10 +45,10 @@ mvn -B clean compile package -Prelease -Dmaven.test.skip=true
 
 # mv dolphinscheduler-bin.tar.gz file to docker/build directory
 echo -e "mv $(pwd)/dolphinscheduler-dist/target/apache-dolphinscheduler-incubating-${VERSION}-dolphinscheduler-bin.tar.gz $(pwd)/docker/build/\n"
-mv $(pwd)/dolphinscheduler-dist/target/apache-dolphinscheduler-incubating-${VERSION}-dolphinscheduler-bin.tar.gz $(pwd)/docker/build/
+mv "$(pwd)"/dolphinscheduler-dist/target/apache-dolphinscheduler-incubating-"${VERSION}"-dolphinscheduler-bin.tar.gz $(pwd)/docker/build/
 
 # docker build
 echo -e "docker build --build-arg VERSION=${VERSION} -t $DOCKER_REPO:${VERSION} $(pwd)/docker/build/\n"
-sudo docker build --build-arg VERSION=${VERSION} -t $DOCKER_REPO:${VERSION} $(pwd)/docker/build/
+sudo docker build --build-arg VERSION="${VERSION}" -t $DOCKER_REPO:"${VERSION}" "$(pwd)/docker/build/"
 
 echo "------ dolphinscheduler end   - build -------"
diff --git a/docker/build/hooks/push b/docker/build/hooks/push
index 41a25c54fe..74ea06d5c5 100644
--- a/docker/build/hooks/push
+++ b/docker/build/hooks/push
@@ -19,6 +19,6 @@
 echo "------ push start -------"
 printenv
 
-docker push $DOCKER_REPO:${VERSION}
+docker push "$DOCKER_REPO:${VERSION}"
 
 echo "------ push end -------"
diff --git a/mvnw b/mvnw
index 41c0f0c23d..05b9e0729c 100755
--- a/mvnw
+++ b/mvnw
@@ -34,128 +34,137 @@
 #   MAVEN_SKIP_RC - flag to disable loading of mavenrc files
 # ----------------------------------------------------------------------------
 
-if [ -z "$MAVEN_SKIP_RC" ] ; then
+if [ -z "$MAVEN_SKIP_RC" ]; then
 
-  if [ -f /etc/mavenrc ] ; then
+  if [ -f /etc/mavenrc ]; then
     . /etc/mavenrc
   fi
 
-  if [ -f "$HOME/.mavenrc" ] ; then
+  if [ -f "$HOME/.mavenrc" ]; then
     . "$HOME/.mavenrc"
   fi
 
 fi
 
 # OS specific support.  $var _must_ be set to either true or false.
-cygwin=false;
-darwin=false;
+cygwin=false
+darwin=false
 mingw=false
-case "`uname`" in
-  CYGWIN*) cygwin=true ;;
-  MINGW*) mingw=true;;
-  Darwin*) darwin=true
-    # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
-    # See https://developer.apple.com/library/mac/qa/qa1170/_index.html
-    if [ -z "$JAVA_HOME" ]; then
-      if [ -x "/usr/libexec/java_home" ]; then
-        export JAVA_HOME="`/usr/libexec/java_home`"
-      else
-        export JAVA_HOME="/Library/Java/Home"
-      fi
+case "$(uname)" in
+CYGWIN*) cygwin=true ;;
+MINGW*) mingw=true ;;
+Darwin*)
+  darwin=true
+  # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
+  # See https://developer.apple.com/library/mac/qa/qa1170/_index.html
+  if [ -z "$JAVA_HOME" ]; then
+    if [ -x "/usr/libexec/java_home" ]; then
+      JAVA_HOME="$(/usr/libexec/java_home)"
+      export JAVA_HOME
+    else
+      JAVA_HOME="/Library/Java/Home"
+      export JAVA_HOME
     fi
-    ;;
+  fi
+  ;;
 esac
 
-if [ -z "$JAVA_HOME" ] ; then
-  if [ -r /etc/gentoo-release ] ; then
-    JAVA_HOME=`java-config --jre-home`
+if [ -z "$JAVA_HOME" ]; then
+  if [ -r /etc/gentoo-release ]; then
+    JAVA_HOME=$(java-config --jre-home)
   fi
 fi
 
-if [ -z "$M2_HOME" ] ; then
+if [ -z "$M2_HOME" ]; then
   ## resolve links - $0 may be a link to maven's home
   PRG="$0"
 
   # need this for relative symlinks
-  while [ -h "$PRG" ] ; do
-    ls=`ls -ld "$PRG"`
-    link=`expr "$ls" : '.*-> \(.*\)$'`
-    if expr "$link" : '/.*' > /dev/null; then
+  while [ -h "$PRG" ]; do
+    ls=$(ls -ld "$PRG")
+    link=$(expr "$ls" : '.*-> \(.*\)$')
+    if expr "$link" : '/.*' >/dev/null; then
       PRG="$link"
     else
-      PRG="`dirname "$PRG"`/$link"
+      PRG="$(dirname "$PRG")/$link"
     fi
   done
 
-  saveddir=`pwd`
+  saveddir=$(pwd)
 
-  M2_HOME=`dirname "$PRG"`/..
+  M2_HOME=$(dirname "$PRG")/..
 
   # make it fully qualified
-  M2_HOME=`cd "$M2_HOME" && pwd`
+  M2_HOME=$(cd "$M2_HOME" && pwd)
 
-  cd "$saveddir"
+  cd "$saveddir" || exit
   # echo Using m2 at $M2_HOME
 fi
 
 # For Cygwin, ensure paths are in UNIX format before anything is touched
-if $cygwin ; then
+if $cygwin; then
   [ -n "$M2_HOME" ] &&
-    M2_HOME=`cygpath --unix "$M2_HOME"`
+    M2_HOME=$(cygpath --unix "$M2_HOME")
   [ -n "$JAVA_HOME" ] &&
-    JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+    JAVA_HOME=$(cygpath --unix "$JAVA_HOME")
   [ -n "$CLASSPATH" ] &&
-    CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
+    CLASSPATH=$(cygpath --path --unix "$CLASSPATH")
 fi
 
 # For Mingw, ensure paths are in UNIX format before anything is touched
-if $mingw ; then
+if $mingw; then
   [ -n "$M2_HOME" ] &&
-    M2_HOME="`(cd "$M2_HOME"; pwd)`"
+    M2_HOME="$( (
+      cd "$M2_HOME" || exit
+      pwd
+    ))"
   [ -n "$JAVA_HOME" ] &&
-    JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
+    JAVA_HOME="$( (
+      cd "$JAVA_HOME" || exit
+      pwd
+    ))"
 fi
 
 if [ -z "$JAVA_HOME" ]; then
-  javaExecutable="`which javac`"
-  if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
+  javaExecutable="$(command -v javac)"
+  if [ -n "$javaExecutable" ] && ! [ "$(expr "$javaExecutable" : '\([^ ]*\)')" = "no" ]; then
     # readlink(1) is not available as standard on Solaris 10.
-    readLink=`which readlink`
-    if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
-      if $darwin ; then
-        javaHome="`dirname \"$javaExecutable\"`"
-        javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
+    readLink=$(command -v readlink)
+    if [ ! "$(expr "$readLink" : '\([^ ]*\)')" = "no" ]; then
+      if $darwin; then
+        javaHome="$(dirname "$javaExecutable")"
+        javaExecutable="$(cd "$javaHome" && pwd -P)/javac"
       else
-        javaExecutable="`readlink -f \"$javaExecutable\"`"
+        javaExecutable="$(readlink -f "$javaExecutable")"
       fi
-      javaHome="`dirname \"$javaExecutable\"`"
-      javaHome=`expr "$javaHome" : '\(.*\)/bin'`
+      javaHome="$(dirname "$javaExecutable")"
+      javaHome=$(expr "$javaHome" : '\(.*\)/bin')
       JAVA_HOME="$javaHome"
       export JAVA_HOME
     fi
   fi
 fi
 
-if [ -z "$JAVACMD" ] ; then
-  if [ -n "$JAVA_HOME"  ] ; then
-    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+if [ -z "$JAVACMD" ]; then
+  if [ -n "$JAVA_HOME" ]; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ]; then
       # IBM's JDK on AIX uses strange locations for the executables
       JAVACMD="$JAVA_HOME/jre/sh/java"
     else
       JAVACMD="$JAVA_HOME/bin/java"
     fi
   else
-    JAVACMD="`which java`"
+    JAVACMD="$(command -v java)"
   fi
 fi
 
-if [ ! -x "$JAVACMD" ] ; then
+if [ ! -x "$JAVACMD" ]; then
   echo "Error: JAVA_HOME is not defined correctly." >&2
   echo "  We cannot execute $JAVACMD" >&2
   exit 1
 fi
 
-if [ -z "$JAVA_HOME" ] ; then
+if [ -z "$JAVA_HOME" ]; then
   echo "Warning: JAVA_HOME environment variable is not set."
 fi
 
@@ -165,22 +174,24 @@ CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
 # first directory with .mvn subdirectory is considered project base directory
 find_maven_basedir() {
 
-  if [ -z "$1" ]
-  then
+  if [ -z "$1" ]; then
     echo "Path not specified to find_maven_basedir"
     return 1
   fi
 
   basedir="$1"
   wdir="$1"
-  while [ "$wdir" != '/' ] ; do
-    if [ -d "$wdir"/.mvn ] ; then
+  while [ "$wdir" != '/' ]; do
+    if [ -d "$wdir"/.mvn ]; then
       basedir=$wdir
       break
     fi
     # workaround for JBEAP-8937 (on Solaris 10/Sparc)
     if [ -d "${wdir}" ]; then
-      wdir=`cd "$wdir/.."; pwd`
+      wdir=$(
+        cd "$wdir/.." || exit
+        pwd
+      )
     fi
     # end of workaround
   done
@@ -190,13 +201,13 @@ find_maven_basedir() {
 # concatenates all lines of a file
 concat_lines() {
   if [ -f "$1" ]; then
-    echo "$(tr -s '\n' ' ' < "$1")"
+    tr -s '\n' ' ' <"$1"
   fi
 }
 
-BASE_DIR=`find_maven_basedir "$(pwd)"`
+BASE_DIR=$(find_maven_basedir "$(pwd)")
 if [ -z "$BASE_DIR" ]; then
-  exit 1;
+  exit 1
 fi
 
 ##########################################################################################
@@ -204,75 +215,78 @@ fi
 # This allows using the maven wrapper in projects that prohibit checking in binary data.
 ##########################################################################################
 if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
+  if [ "$MVNW_VERBOSE" = true ]; then
+    echo "Found .mvn/wrapper/maven-wrapper.jar"
+  fi
+else
+  if [ "$MVNW_VERBOSE" = true ]; then
+    echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
+  fi
+  if [ -n "$MVNW_REPOURL" ]; then
+    jarUrl="$MVNW_REPOURL/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+  else
+    jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+  fi
+  while IFS="=" read -r key value; do
+    case "$key" in wrapperUrl)
+      jarUrl="$value"
+      break
+      ;;
+    esac
+  done <"$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
+  if [ "$MVNW_VERBOSE" = true ]; then
+    echo "Downloading from: $jarUrl"
+  fi
+  wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
+  if $cygwin; then
+    wrapperJarPath=$(cygpath --path --windows "$wrapperJarPath")
+  fi
+
+  if command -v wget >/dev/null; then
     if [ "$MVNW_VERBOSE" = true ]; then
-      echo "Found .mvn/wrapper/maven-wrapper.jar"
+      echo "Found wget ... using wget"
     fi
-else
+    if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+      wget "$jarUrl" -O "$wrapperJarPath"
+    else
+      wget --http-user="$MVNW_USERNAME" --http-password="$MVNW_PASSWORD" "$jarUrl" -O "$wrapperJarPath"
+    fi
+  elif command -v curl >/dev/null; then
     if [ "$MVNW_VERBOSE" = true ]; then
-      echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
+      echo "Found curl ... using curl"
     fi
-    if [ -n "$MVNW_REPOURL" ]; then
-      jarUrl="$MVNW_REPOURL/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+    if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+      curl -o "$wrapperJarPath" "$jarUrl" -f
     else
-      jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+      curl --user "$MVNW_USERNAME":"$MVNW_PASSWORD" -o "$wrapperJarPath" "$jarUrl" -f
     fi
-    while IFS="=" read key value; do
-      case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
-      esac
-    done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
+
+  else
     if [ "$MVNW_VERBOSE" = true ]; then
-      echo "Downloading from: $jarUrl"
+      echo "Falling back to using Java to download"
     fi
-    wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
+    javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
+    # For Cygwin, switch paths to Windows format before running javac
     if $cygwin; then
-      wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
+      javaClass=$(cygpath --path --windows "$javaClass")
     fi
-
-    if command -v wget > /dev/null; then
-        if [ "$MVNW_VERBOSE" = true ]; then
-          echo "Found wget ... using wget"
-        fi
-        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
-            wget "$jarUrl" -O "$wrapperJarPath"
-        else
-            wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath"
-        fi
-    elif command -v curl > /dev/null; then
+    if [ -e "$javaClass" ]; then
+      if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
         if [ "$MVNW_VERBOSE" = true ]; then
-          echo "Found curl ... using curl"
-        fi
-        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
-            curl -o "$wrapperJarPath" "$jarUrl" -f
-        else
-            curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
+          echo " - Compiling MavenWrapperDownloader.java ..."
         fi
-
-    else
+        # Compiling the Java class
+        ("$JAVA_HOME/bin/javac" "$javaClass")
+      fi
+      if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+        # Running the downloader
         if [ "$MVNW_VERBOSE" = true ]; then
-          echo "Falling back to using Java to download"
-        fi
-        javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
-        # For Cygwin, switch paths to Windows format before running javac
-        if $cygwin; then
-          javaClass=`cygpath --path --windows "$javaClass"`
-        fi
-        if [ -e "$javaClass" ]; then
-            if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
-                if [ "$MVNW_VERBOSE" = true ]; then
-                  echo " - Compiling MavenWrapperDownloader.java ..."
-                fi
-                # Compiling the Java class
-                ("$JAVA_HOME/bin/javac" "$javaClass")
-            fi
-            if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
-                # Running the downloader
-                if [ "$MVNW_VERBOSE" = true ]; then
-                  echo " - Running MavenWrapperDownloader.java ..."
-                fi
-                ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
-            fi
+          echo " - Running MavenWrapperDownloader.java ..."
         fi
+        ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
+      fi
     fi
+  fi
 fi
 ##########################################################################################
 # End of extension
@@ -280,25 +294,25 @@ fi
 
 export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
 if [ "$MVNW_VERBOSE" = true ]; then
-  echo $MAVEN_PROJECTBASEDIR
+  echo "$MAVEN_PROJECTBASEDIR"
 fi
 MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
 
 # For Cygwin, switch paths to Windows format before running java
 if $cygwin; then
   [ -n "$M2_HOME" ] &&
-    M2_HOME=`cygpath --path --windows "$M2_HOME"`
+    M2_HOME=$(cygpath --path --windows "$M2_HOME")
   [ -n "$JAVA_HOME" ] &&
-    JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
+    JAVA_HOME=$(cygpath --path --windows "$JAVA_HOME")
   [ -n "$CLASSPATH" ] &&
-    CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
+    CLASSPATH=$(cygpath --path --windows "$CLASSPATH")
   [ -n "$MAVEN_PROJECTBASEDIR" ] &&
-    MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
+    MAVEN_PROJECTBASEDIR=$(cygpath --path --windows "$MAVEN_PROJECTBASEDIR")
 fi
 
 # Provide a "standardized" way to retrieve the CLI args that will
 # work with both Windows and non-Windows executions.
-MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
+MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $*"
 export MAVEN_CMD_LINE_ARGS
 
 WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain