diff --git a/nicsensor.sh b/nicsensor.sh
index 9dc831f..8e0a796 100755
--- a/nicsensor.sh
+++ b/nicsensor.sh
@@ -138,7 +138,7 @@ ina3221_ch2_volt="0"
 ina3221_ch0_current="0"
 ina3221_ch1_current="0"
 ina3221_ch2_current="0"
-SCRIPT_VERSION="1.5 Rev5 Intest"
+SCRIPT_VERSION="1.5 Rev6 Intest"
 
 fru_file_name=$option_data2
 fru_write_size=0
@@ -150,50 +150,41 @@ res_tmp468=""
 # ---------------------------------------------------------
 #  Script Function Defination
 # ---------------------------------------------------------
-
-print_ocp_usage(){
-    echo "----------------------------------------------------------------"
-    echo "  To test OCP Nic on server, support command as:"
-    echo "  1.detect function"
-    echo "      ./nicsensor.sh detect ocp"
-    echo "  2.Reading sensors"
-    echo "      ./nicsensor.sh ocp0 emc1413 0x4c"
-    echo ""
-    echo "  Now only 5280m7 support to test ocp card"
-    echo ""
-}
-
-# script usage
 print_usage(){
     echo ""
     echo "================>>> nicsensor script usage <<<=================="
-    echo "    Command Format  : ./nicsensor.sh [slot] [sensor tpye] [slave]"
-    echo "    Option Detail"
-    echo "      [slot]        : 0 1 2 3 4 5 ..."
-    echo "      [sensor type] : $Support_Sensor_List"
-    echo "      [slave]       : chip slave address , please provide 7 bit address"
-    echo "    E.G.            : ./nicsensor.sh 1 adc128 0x1f"
-    echo "                      ./nicsensor.sh pcie1 ina3221 0x42"
-    echo "                      ./nicsensor.sh ocp0 emc1413 0x4c"
+    echo "  Function 1 - Read Sensor Value"
+    echo "    1) Command Format  : ./nicsensor.sh [slot] [sensor tpye] [slave]"
+    echo "    2) Option Detail"
+    echo "       - [slot]        : 0 1 2 3 4 5 ..."
+    echo "       - [sensor type] : $Support_Sensor_List"
+    echo "       - [slave]       : chip slave address , please provide 7 bit address"
+    echo "    3) E.G.            : ./nicsensor.sh 1 adc128 0x1f"
+    echo "                         ./nicsensor.sh pcie1 ina3221 0x42"
+    echo "                         ./nicsensor.sh ocp0 emc1413 0x4c"
     echo ""
-    if [ $DEBUG_MODE -eq 1 ];then
-        echo "      Server Type : Debug Mode"
-    else
-        echo "      Server Type : $server_type"
-    fi
+    echo "  Function 2 - Detect I2C for each slot"
+    echo "    1) Command Format  : ./nicsensor.sh detect [pcie/ocp]"
+    echo "    2) E.G.            :  ./nicsensor.sh detect pcie"
+    echo "                          ./nicsensor.sh detect ocp [some server don't support]"
+    echo "    3) Note            : This function now only support on server:"
+    echo "                         $Support_Server_List"
     echo ""
-    echo "    To Auto detect i2c slave on server, please use:"
-    echo "       ./nicsensor.sh detect"
-    echo "       ./nicsensor.sh detect pcie"
-    echo "       ./nicsensor.sh detect ocp [some server don't support]"
-    echo "       This function now only support on server:"
-    echo "        $Support_Server_List"
+    echo "  Function 3 - Set i2c command to chip on Nic"
+    echo "   1) Command Format   : ./nicsensor.sh [slot] chip [slave] [command]"
+    echo "   2) Option Detail"
+    echo "       - [slot]        : 0 1 2 3 4 5 ..."
+    echo "       - [slave]       : chip slave address , please provide 7 bit address"
+    echo "       - [command]     : The i2c command which will set to the chip"
     echo ""
-    echo "    If want to read/write chip register, use the below format"
-    echo "       ./nicsensor.sh [slot] chip [slave] [i2c_command]"
-    echo "       i2c_command : such as [i2ctransfer -y 13 w1@0x10 0x00 r2]"
+    echo "  Function 4 - FRU Read and Wirte"
+    echo "   1) Command Format   : ./nicsensor.sh [slot] fru [slave] [option] [frudata]"
+    echo "   2) Option Detail"
+    echo "       - [slot]        : 0 1 2 3 4 5 ..."
+    echo "       - [slave]       : chip slave address , please provide 7 bit address"
+    echo "       - [option]      : read/write, default to read"
+    echo "       - [frudata]     : fru bin file which will write to eeprom, only for write option"
     echo ""
-    print_ocp_usage
 }
 
 print_chip_command_format(){
@@ -1448,6 +1439,13 @@ start_detect_device(){
 
 conf_pre_check
 
+if [ "$1" == "version" ];then
+    echo "Script Version : $SCRIPT_VERSION"
+    echo "Debug Mode     : $DEBUG_MODE"
+    echo "Disable Detect : $DISABLE_DETECT"
+    exit 0
+fi
+
 # is param legel?
 if [ "$sensor_type" == "chip" ];then
     if [ $# -le 3 ];then