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free -m | awk '/Mem:/ {printf "Free: %s MB\n", $4}'
echo "Free: $(( $(( $(cat /proc/meminfo | awk '/^MemFree:/ {print $2}') + $(cat /proc/meminfo | awk '/^Cached:/ {print $2}') + $(cat /proc/meminfo | awk '/^Buffers:/ {print $2}') )) / 1024 )) MB"
echo $(($(cat /sys/class/thermal/thermal_zone0/temp)/1000))
echo $'scale=2\n'$(cat /sys/class/thermal/thermal_zone0/temp)/1000 | bc