poor man's resource monitor for raspberrypi home server

resource-monitor.sh

#!/bin/bash


# step 1: install these tools

# sudo apt install sysstat 
# sudo apt install ifstat


# step 2: setup header for the files in ~/scripts

# df -h | head -1 > disk_history.log
# ifstat -i eth0,wlan0,wg0,docker0  1 1 | head -2 > network_history.log
# free -h | head -2 > memory_history.log
# vcgencmd measure_temp > cpu_temp_history.log
# mpstat | tail -2| head -1 > cpu_history.log


# step 3: add to your crontab

# capture resource usage every 30 min
#*/30 * * * * sudo bash /home/strawberry/scripts/resource-monitor.sh


cpu_history_file="/home/strawberry/scripts/cpu_history.log" # mpstat | tail -1
cpu_temp_file="/home/strawberry/scripts/cpu_temp_history.log" # vcgencmd measure_temp
memory_history_file="/home/strawberry/scripts/memory_history.log" # free -h
disk_history_file="/home/strawberry/scripts/disk_history.log" # df -h
network_history_file="/home/strawberry/scripts/network_history.log" # ifstat  1 1


cpu_history=$(mpstat | tail -1)
echo "$(date) | $cpu_history" >> $cpu_history_file

cpu_temp_history=$(vcgencmd measure_temp)
echo "$(date) | $cpu_temp_history" >> $cpu_temp_file

mem_history=$(free -h | grep "Mem" --color=never)
echo "$(date) | $mem_history" >> $memory_history_file

disk_history=$(df -h | grep "/dev/nvme0n1p2" --color=never)
echo "$(date) | $disk_history" >> $disk_history_file


net_history=$(ifstat -i eth0,wlan0,wg0,docker0 1 1 | tail -1)
echo "$(date) | $net_history" >> $network_history_file

based on whether you have sdcard /dev/mmcblk0p2 or nvme /dev/nvme0n1p2 you need to update df -h | grep ...