diff --git a/arthas-boot.jar b/arthas-boot.jar
index 712aaa9aa..1b247b58d 100644
Binary files a/arthas-boot.jar and b/arthas-boot.jar differ
diff --git a/arthas-demo.jar b/arthas-demo.jar
index d60d74bf9..810fbb7e7 100644
Binary files a/arthas-demo.jar and b/arthas-demo.jar differ
diff --git a/as.sh b/as.sh
index 4b29b596c..891b957a1 100755
--- a/as.sh
+++ b/as.sh
@@ -8,10 +8,10 @@
 
 # program : Arthas
 #  author : Core Engine @ Taobao.com
-#    date : 2020-08-11
+#    date : 2020-11-04
 
 # current arthas script version
-ARTHAS_SCRIPT_VERSION=3.3.9
+ARTHAS_SCRIPT_VERSION=3.4.4
 
 # SYNOPSIS
 #   rreadlink <fileOrDirPath>
@@ -88,17 +88,20 @@ ARTHAS_LIB_DIR=${HOME}/.arthas/lib
 # target process id to attach
 TARGET_PID=
 
-# target process id to attach
-TARGET_IP="127.0.0.1"
+# target process id to attach, default 127.0.0.1
+TARGET_IP=
+DEFAULT_TARGET_IP="127.0.0.1"
 
-# telnet port
-TELNET_PORT="3658"
+# telnet port, default 3658
+TELNET_PORT=
+DEFAULT_TELNET_PORT="3658"
 
-# http port
-HTTP_PORT="8563"
+# http port, default 8563
+HTTP_PORT=
+DEFAULT_HTTP_PORT="8563"
 
 # telnet session timeout seconds, default 1800
-SESSION_TIMEOUT=1800
+SESSION_TIMEOUT=
 
 # use specify version
 USE_VERSION=
@@ -139,6 +142,9 @@ AGENT_ID=
 # stat report url
 STAT_URL=
 
+# app name
+APP_NAME=
+
 ############ Command Arguments ############
 
 # if arguments contains -c/--command or -f/--batch-file,  BATCH_MODE will be true
@@ -393,6 +399,7 @@ Usage:
     $0 [-h] [--target-ip <value>] [--telnet-port <value>]
        [--http-port <value>] [--session-timeout <value>] [--arthas-home <value>]
        [--tunnel-server <value>] [--agent-id <value>] [--stat-url <value>]
+       [--app-name <value>]
        [--use-version <value>] [--repo-mirror <value>] [--versions] [--use-http]
        [--attach-only] [-c <value>] [-f <value>] [-v] [pid]
 
@@ -412,6 +419,7 @@ Options and Arguments:
     --debug-attach              Debug attach agent
     --tunnel-server             Remote tunnel server url
     --agent-id                  Special agent id
+    --app-name                  Special app name
     --select                    select target process by classname or JARfilename
  -c,--command <value>           Command to execute, multiple commands separated
                                 by ;
@@ -425,12 +433,12 @@ EXAMPLES:
   ./as.sh <pid>
   ./as.sh --target-ip 0.0.0.0
   ./as.sh --telnet-port 9999 --http-port -1
-  ./as.sh --tunnel-server 'ws://192.168.10.11:7777/ws'
+  ./as.sh --tunnel-server 'ws://192.168.10.11:7777/ws' --app-name demoapp
   ./as.sh --tunnel-server 'ws://192.168.10.11:7777/ws' --agent-id bvDOe8XbTM2pQWjF4cfw
   ./as.sh --stat-url 'http://192.168.10.11:8080/api/stat'
   ./as.sh -c 'sysprop; thread' <pid>
   ./as.sh -f batch.as <pid>
-  ./as.sh --use-version 3.3.9
+  ./as.sh --use-version 3.4.4
   ./as.sh --session-timeout 3600
   ./as.sh --attach-only
   ./as.sh --select arthas-demo
@@ -461,6 +469,33 @@ find_listen_port_process()
     fi
 }
 
+getTargetIPOrDefault()
+{
+    local targetIP=${DEFAULT_TARGET_IP}
+    if [ "${TARGET_IP}" ]; then
+        targetIP=${TARGET_IP}
+    fi
+    echo $targetIP
+}
+
+getTelnetPortOrDefault()
+{
+    local telnetPort=${DEFAULT_TELNET_PORT}
+    if [ "${TELNET_PORT}" ]; then
+        telnetPort=${TELNET_PORT}
+    fi
+    echo $telnetPort
+}
+
+getHttpPortOrDefault()
+{
+    local httpPort=${DEFAULT_HTTP_PORT}
+    if [ "${HTTP_PORT}" ]; then
+        httpPort=${HTTP_PORT}
+    fi
+    echo $httpPort
+}
+
 # Status from com.taobao.arthas.client.TelnetConsole
 # Execute commands timeout
 STATUS_EXEC_TIMEOUT=100
@@ -479,8 +514,8 @@ find_listen_port_process_by_client()
 
     "${JAVA_HOME}/bin/java" ${ARTHAS_OPTS} ${JVM_OPTS} \
              -jar "${arthas_lib_dir}/arthas-client.jar" \
-             ${TARGET_IP} \
-             ${TELNET_PORT} \
+             $(getTargetIPOrDefault) \
+             $(getTelnetPortOrDefault) \
              -c "session" \
              --execution-timeout 2000 \
              2>&1
@@ -567,6 +602,11 @@ parse_arguments()
         shift # past argument
         shift # past value
         ;;
+        --app-name)
+        APP_NAME="$2"
+        shift # past argument
+        shift # past value
+        ;;
         --use-http)
         USE_HTTP=true
         shift # past argument
@@ -637,16 +677,18 @@ parse_arguments()
     # check telnet port/http port
     local telnetPortPid
     local httpPortPid
-    if [[ $TELNET_PORT > 0 ]]; then
-        telnetPortPid=$(find_listen_port_process $TELNET_PORT)
+    local telnetPortOrDefault=$(getTelnetPortOrDefault)
+    local httpPortOrDefault=$(getHttpPortOrDefault)
+    if [[ $telnetPortOrDefault > 0 ]]; then
+        telnetPortPid=$(find_listen_port_process $telnetPortOrDefault)
         if [ $telnetPortPid ]; then
-            echo "[INFO] Process $telnetPortPid already using port $TELNET_PORT"
+            echo "[INFO] Process $telnetPortPid already using port $telnetPortOrDefault"
         fi
     fi
-    if [[ $HTTP_PORT > 0 ]]; then
-        httpPortPid=$(find_listen_port_process $HTTP_PORT)
+    if [[ $httpPortOrDefault > 0 ]]; then
+        httpPortPid=$(find_listen_port_process $httpPortOrDefault)
         if [ $telnetPortPid ]; then
-            echo "[INFO] Process $httpPortPid already using port $HTTP_PORT"
+            echo "[INFO] Process $httpPortPid already using port $httpPortOrDefault"
         fi
     fi
 
@@ -717,7 +759,7 @@ parse_arguments()
             exit 1
         fi
         if [[ ($httpPortPid) && ($TARGET_PID != $httpPortPid) ]]; then
-            echo "Target process $TARGET_PID is not the process using port $HTTP_PORT, you will connect to an unexpected process."
+            echo "Target process $TARGET_PID is not the process using port $(getHttpPortOrDefault), you will connect to an unexpected process."
             echo "1. Try to restart as.sh, select process $httpPortPid, shutdown it first with running the 'stop' command."
             echo "2. Try to use different http port, for example: as.sh --telnet-port 9998 --http-port 9999"
             exit 1
@@ -759,14 +801,32 @@ attach_jvm()
         tempArgs+=("${STAT_URL}")
     fi
 
+    if [ "${APP_NAME}" ]; then
+        tempArgs+=("-app-name")
+        tempArgs+=("${APP_NAME}")
+    fi
+
+    if [ "${TARGET_IP}" ]; then
+        tempArgs+=("-target-ip")
+        tempArgs+=("${TARGET_IP}")
+    fi
+    if [ "${TELNET_PORT}" ]; then
+        tempArgs+=("-telnet-port")
+        tempArgs+=("${TELNET_PORT}")
+    fi
+    if [ "${HTTP_PORT}" ]; then
+        tempArgs+=("-http-port")
+        tempArgs+=("${HTTP_PORT}")
+    fi
+    if [ "${SESSION_TIMEOUT}" ]; then
+        tempArgs+=("-session-timeout")
+        tempArgs+=("${SESSION_TIMEOUT}")
+    fi
+
     "${java_command[@]}" \
         ${ARTHAS_OPTS} ${JVM_OPTS} \
         -jar "${arthas_lib_dir}/arthas-core.jar" \
             -pid ${TARGET_PID} \
-            -target-ip ${TARGET_IP} \
-            -telnet-port ${TELNET_PORT} \
-            -http-port ${HTTP_PORT} \
-            -session-timeout ${SESSION_TIMEOUT} \
             "${tempArgs[@]}" \
             -core "${arthas_lib_dir}/arthas-core.jar" \
             -agent "${arthas_lib_dir}/arthas-agent.jar"
@@ -811,7 +871,7 @@ sanity_check() {
 }
 
 port_pid_check() {
-    if [[ $TELNET_PORT > 0 ]]; then
+    if [[ $(getTelnetPortOrDefault) > 0 ]]; then
         local telnet_output
         local find_process_status
         # declare local var before var=$()
@@ -844,15 +904,15 @@ port_pid_check() {
 }
 
 print_telnet_port_pid_error() {
-    echo "[ERROR] The telnet port $TELNET_PORT is used by process $telnetPortPid instead of target process $TARGET_PID, you will connect to an unexpected process."
+    echo "[ERROR] The telnet port $(getTelnetPortOrDefault) is used by process $telnetPortPid instead of target process $TARGET_PID, you will connect to an unexpected process."
     echo "[ERROR] 1. Try to restart as.sh, select process $telnetPortPid, shutdown it first with running the 'stop' command."
-    echo "[ERROR] 2. Try to stop the existing arthas instance: java -jar arthas-client.jar 127.0.0.1 $TELNET_PORT -c \"stop\""
+    echo "[ERROR] 2. Try to stop the existing arthas instance: java -jar arthas-client.jar 127.0.0.1 $(getTelnetPortOrDefault) -c \"stop\""
     echo "[ERROR] 3. Try to use different telnet port, for example: as.sh --telnet-port 9998 --http-port -1"
 }
 
 print_telnet_port_used_error() {
     local error_msg=$1
-    echo "[ERROR] The telnet port $TELNET_PORT is used, but process $error_msg, you will connect to an unexpected process."
+    echo "[ERROR] The telnet port $(getTelnetPortOrDefault) is used, but process $error_msg, you will connect to an unexpected process."
     echo "[ERROR] Try to use different telnet port, for example: as.sh --telnet-port 9998 --http-port -1"
 }
 
@@ -881,16 +941,16 @@ active_console()
         if [ "${COMMAND}" ] ; then
         "${JAVA_HOME}/bin/java" ${ARTHAS_OPTS} ${JVM_OPTS} \
              -jar "${arthas_lib_dir}/arthas-client.jar" \
-             ${TARGET_IP} \
-             ${TELNET_PORT} \
+             $(getTargetIPOrDefault) \
+             $(getTelnetPortOrDefault) \
              "${tempArgs[@]}" \
              -c "${COMMAND}"
         fi
         if [ "${BATCH_FILE}" ] ; then
         "${JAVA_HOME}/bin/java" ${ARTHAS_OPTS} ${JVM_OPTS} \
              -jar "${arthas_lib_dir}/arthas-client.jar" \
-             ${TARGET_IP} \
-             ${TELNET_PORT} \
+             $(getTargetIPOrDefault) \
+             $(getTelnetPortOrDefault) \
              "${tempArgs[@]}" \
              -f ${BATCH_FILE}
         fi
@@ -899,12 +959,12 @@ active_console()
         if [[ $(command -v telnet) == *"system32"* ]] ; then
             # Windows/system32/telnet.exe can not run in Cygwin/MinGw
             echo "It seems that current bash is under Windows. $(command -v telnet) can not run under bash."
-            echo "Please start cmd.exe from Windows start menu, and then run telnet ${TARGET_IP} ${TELNET_PORT} to connect to target process."
-            echo "Or visit http://127.0.0.1:${HTTP_PORT} to connect to target process."
+            echo "Please start cmd.exe from Windows start menu, and then run telnet $(getTargetIPOrDefault) $(getTelnetPortOrDefault) to connect to target process."
+            echo "Or visit http://127.0.0.1:$(getHttpPortOrDefault) to connect to target process."
             return 1
         fi
         echo "telnet connecting to arthas server... current timestamp is `date +%s`"
-        telnet ${TARGET_IP} ${TELNET_PORT}
+        telnet $(getTargetIPOrDefault) $(getTelnetPortOrDefault)
     else
         echo "'telnet' is required." 1>&2
         return 1