cloudshell-lcd

#!/bin/bash
# hardkernel CloudShell Screen update
#
# requires the following packages:
# curl sysstat
#
# Source http://bazaar.launchpad.net/~kyle1117/+junk/cloudshell-lcd/view/head:/bin/cloudshell-lcd

############## Configuration

# Disable LCD Sleep mode
echo -e '\033[9;0]' > /dev/tty1

# console font
# More fonts on: /usr/share/consolefonts
export TERM="linux"
export CONSOLE_FONT="Lat7-Fixed18"
#export CONSOLE_FONT="Lat15-TerminusBold20x10"

# Output Console (ttyX)
export OUTPUT_CONSOLE="1"

# Network Interface: enx001e06323348, wlan0, ....
export NETIF=eth0

# Screen refresh in seconds
export REFRESH="1"

# CPU Temperature in C or F
export TEMPERATURE_FORMAT="C"

# External IP Refresh counts
# The time to update the ip in counts is acquired by using the following formula
# seconds_to_refresh = EXT_IP_REFRESH * REFRESH
export EXT_IP_REFRESH="10"

# assign the script to cpu0
PID=$$
taskset -cp 1 $PID

get_external_ip() {
	export EXTERNAL_IP=$(/usr/bin/curl -s http://mdrjr.net/ip.php)
}

get_full_date() {
	export DATE=$(date +"%Y-%m-%d %H:%M:%S")
}

get_hostname() {
	export HOSTNAME=$(hostname)
}

get_os_distributor() {
	export OS_DISTRIBUTOR=$(lsb_release -i | awk '{ print $3 }')
}

get_internal_ip() {
	export INTERNAL_IP=$(hostname -I | cut -d ' ' -f 1)
}

get_ethernet_speed() {
	export SPEED_ETH0=$(cat /sys/class/net/eth*/speed)
}

get_net_tx_rx_realtime() {
	local net_txrx=($(sar -n DEV 1 1 | awk '$2 == "'$NETIF'" {printf "%.1f %.1f", $5/1024, $6/1024; exit;}'))
	export NET_TX=${net_txrx[0]}
	export NET_RX=${net_txrx[1]}
}

get_disk_mount_info() {
	fdisk -l > disks.txt
	SATA=($(awk '/^\/dev\/sd/ {printf "%s ", $1}' disks.txt))
	rm disks.txt
}


get_disk_info() {
	local t=$(df -h)
	local iostat=$(iostat -y -m 1 1)

	for i in "${!SATA[@]}"
	do
		# escape / --> \/
		escaped_regex="${SATA[$i]//\//\\/}"
		#DISK_SIZE[$i]=$(echo "$t" | awk '/^'"$escaped_regex"'/ {print $2}')
		DISK_USED[$i]=$(echo "$t" | awk '/^'"$escaped_regex"'/ {print $3}')
		DISK_FREE[$i]=$(echo "$t" | awk '/^'"$escaped_regex"'/ {print $4}')
		DISK_USED_PCT[$i]=$(echo "$t" | awk '/^'"$escaped_regex"'/ {print $5}')

		local SAT=$(expr "${SATA[$i]#"/dev/"}" : '\([a-z]*\)')
		DISK_R[$i]=$(echo "$iostat" | awk '/^'"$SAT"'/ {print $3}')
		DISK_W[$i]=$(echo "$iostat" | awk '/^'"$SAT"'/ {print $4}')
	done
}

get_disk_temperature() {
	for i in "${!SATA[@]}"
	do
		# declare and assign variable seperately to avoid masking return value
		DISK_TEMP[$i]=" (IDLE)"
		if (( ${DISK_R[$i]%.*} > 0 )) || (( ${DISK_W[$i]%.*} > 0 ))
		then

			local t
			t=$(smartctl -a "${SATA[$i]}" -d sat | grep "Temp")
			if (( $? == 0 ))
			then
				local temp=$(echo $t | awk '{print $10}')
				DISK_TEMP[$i]="${CRED} Temp: $temp$TEMPERATURE_FORMAT"
			else
				DISK_TEMP[$i]=""
			fi
		fi
	done
}

get_memory_info() {
	# in Mbytes
	export MEM_AVAILABLE=$(awk '/^MemAvailable:/ {printf "%d", $2/1024}' /proc/meminfo)
	export MEM_TOTAL=$(awk '/^MemTotal:/ {printf "%d", $2/1024}' /proc/meminfo)
	export MEM_USED=$((MEM_TOTAL - MEM_AVAILABLE))
}

get_system_info() {
	export UBUNTU_VERSION=$(lsb_release -r | awk '{print $2}')
	export KERNEL_VERSION=$(uname -r | awk -F "-" '{print $1}')
}

get_cpu_usage() { 
	export CPU_USAGE=$(mpstat 1 1 | awk '/Average/ {printf "%.1f", 100-$12}')
}

get_cpu_clock() {
	speed_a7=$(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq)
	speed_a15=$(cat /sys/devices/system/cpu/cpu4/cpufreq/scaling_cur_freq)
	export SPEED_CPU_A7="$((speed_a7/1000))"
	export SPEED_CPU_A15="$((speed_a15/1000))"
}

get_cpu_temperature() {
	_t=$(($(</sys/class/thermal/thermal_zone0/temp) / 1000))
	if [ "$TEMPERATURE_FORMAT" = "C" ]; then
		export CPU_TEMP="$_t"C
	else
		_t1=$((_t * 9 / 5 + 32))
		export CPU_TEMP="$_t1"F
	fi
}

get_samba_connections() {
	if [ ! -f /usr/bin/smbstatus ]; then
		export SAMBA_CONNECTIONS=0
	else
		export SAMBA_CONNECTIONS=$(smbstatus -b | grep -c ipv)
	fi
}

get_nfs_connections() { 
	export NFS_CONNECTIONS=$(netstat -an | grep 2049 | grep -c ESTA)
}

get_process_count() { 
	export PROCESS_COUNT=$(ps xa | wc -l)
}

# local variables
ext_ip_refresh_c=0
COFF=$(tput sgr0)
CGREEN=$(tput setaf 2)
CRED=$(tput setaf 1)
CBLUE=$(tput setaf 6)
oc="/dev/tty$OUTPUT_CONSOLE"

# font setup
setfont $CONSOLE_FONT > $oc

# Ensure that we are in the right TTY
chvt $OUTPUT_CONSOLE

# infinite loop
while true; do

	# Ensure that we are in the right TTY
	chvt $OUTPUT_CONSOLE

	# check if EXT_IP_REFRESH
	#if (( (ext_ip_refresh_c % EXT_IP_REFRESH) == 0 )); then
	#	get_external_ip
	#fi
	
	# increment $ext_ip_refresh_c
	#ext_ip_refresh_c=$((ext_ip_refresh_c+1))

	# get data
	get_internal_ip
	get_ethernet_speed
	get_hostname
	get_os_distributor
	get_disk_mount_info
	get_disk_info
	get_disk_temperature
	get_full_date
	#get_net_tx_rx_realtime
	#get_memory_info
	get_system_info
	get_cpu_clock
	get_cpu_usage
	get_cpu_temperature
	get_samba_connections
	get_nfs_connections
	#get_process_count

	# clear the screen every loop
	# we only wipe the screen when we are ready to write data to it
	clear > $oc

	# format the data on screen
	echo -e "$CBLUE$HOSTNAME $COFF: $DATE" > $oc
	echo -e "$OS_DISTRIBUTOR $CGREEN$UBUNTU_VERSION$COFF       Kernel $CGREEN$KERNEL_VERSION$COFF" > $oc
	# line CPU Usage
	echo -e "CPU Usage: $CBLUE$CPU_USAGE%$COFF  CPU Temp: $CRED$CPU_TEMP$COFF" > $oc
	echo -e "A15 : $CBLUE$SPEED_CPU_A15 MHz$COFF   A7 : $CBLUE$SPEED_CPU_A7 MHz$COFF" > $oc
	# Line Memory
	#echo -e "Memory Free: $CBLUE$MEM_AVAILABLE MB$COFF   Used: $CBLUE$MEM_USED MB$COFF" > $oc
	# Line IP Addresses
	#echo -e "IP: $CBLUE$INTERNAL_IP$COFF Ext IP: $CBLUE$EXTERNAL_IP$COFF" > $oc
	echo -e "IP: $CBLUE$INTERNAL_IP$COFF @ $CBLUE$SPEED_ETH0 Mbps$COFF" > $oc
	# Line network usage
	#echo -e "TX: $CBLUE$NET_TX MB/s$COFF RX: $CBLUE$NET_RX MB/s$COFF" > $oc
	# Line Disk Space

	
	for i in "${!SATA[@]}"
	do
		echo "" > $oc
		echo -e "${SATA[$i]} ${DISK_TEMP[$i]}$COFF" > $oc
		echo -e "R/W $CBLUE${DISK_R[$i]}$COFF / $CBLUE${DISK_W[$i]}$COFF MB/s" > $oc
		#echo -ne "Disk Used: $CBLUE${DISK_USED[$i]}$COFF ($CBLUE${DISK_USED_PCT[$i]}$COFF)  Free: $CBLUE${DISK_FREE[$i]}$COFF" > $oc
	done

	# Line Samba
	echo -e "Samba Clients: $CBLUE$SAMBA_CONNECTIONS$COFF" > $oc
	# Line NFS
	echo -e "NFS Connections: $CBLUE$NFS_CONNECTIONS$COFF" > $oc
	# Line Processes

	# sleep
	sleep $REFRESH

done