diff --git a/mesh_bot.py b/mesh_bot.py
index 52d9c52..911b69a 100755
--- a/mesh_bot.py
+++ b/mesh_bot.py
@@ -770,7 +770,7 @@ def sysinfo(message, message_from_id, deviceID):
         return "sysinfo command returns system information."
     else:
         if enable_runShellCmd and file_monitor_enabled:
-            shellData = call_external_script(message)
+            shellData = call_external_script(message).rstrip()
             return get_sysinfo(message_from_id, deviceID) + "\n" + shellData
         else:
             return get_sysinfo(message_from_id, deviceID)
diff --git a/runShell.sh b/runShell.sh
index c626bde..c993750 100644
--- a/runShell.sh
+++ b/runShell.sh
@@ -9,7 +9,7 @@ free_space=$(df -h | grep ' /$' | awk '{print $4}')
 cpu_usage=$(top -bn1 | grep "Cpu(s)" | sed "s/.*, *\([0-9.]*\)%* id.*/\1/" | awk '{print 100 - $1}')
 ram_usage=$(free | grep Mem | awk '{print $3/$2 * 100.0}')
 
-# if command vcgencmd is found
+# if command vcgencmd is found, part of raspberrypi tools, use it to get temperature
 if command -v vcgencmd &> /dev/null
 then
     # get temperature
@@ -17,11 +17,11 @@ then
     # temp in fahrenheit
     tempf=$(echo "scale=2; $temp * 9 / 5 + 32" | bc)
 else
+    # get temperature from thermal zone
     temp=$(paste <(cat /sys/class/thermal/thermal_zone*/type) <(cat /sys/class/thermal/thermal_zone*/temp) | grep "temp" | awk '{print $2/1000}' | awk '{s+=$1} END {print s/NR}')
     tempf=$(echo "scale=2; $temp * 9 / 5 + 32" | bc)
 fi
 
-
 # print telemetry data
 printf "Free Space: %s\n" "$free_space"
 printf "CPU Usage: %.1f%%\n" "$cpu_usage"