system_monitor.sh

#!/bin/bash
# Define the path to your folder
set -euo pipefail
if [ ! -d /var/log/system_logs ]; then
    sudo mkdir -p /var/log/system_logs
    sudo chown $USER:$USER /var/log/system_logs
fi
if [ ! -f /var/log/system_logs/system_logs.log ]; then
    sudo touch /var/log/system_logs/system_logs.log
    sudo chown $USER:$USER /var/log/system_logs/system_logs.log
fi
log_path="/var/log/system_logs/system_logs.log"

#Log the current date and time with audit label
echo "===========================================" >> $log_path
echo "System Audit: $(date)">> $log_path
echo "===========================================" >> $log_path

#Parse CPU information from lscpu and extract specified fields
lscpu | while IFS=: read -r key value; do
    case "$key" in
        "CPU(s)")
            echo "Total Number of CPU(s): $value" ;;
        "CPU family")
            echo "Processor Family ID: $value" ;;
        "Model")
            echo "Specific Model ID: $value" ;;
        "Thread(s) per core")
            echo "Hyper-threading Threads: $value" ;;
        "Core(s) per socket")
            echo "Physical Core Count: $value" ;;
        "Model name")
            echo "PC Model Name: $value" ;;
    esac
done >> $log_path

#Memory Usage
(printf "Memory Usage \n" && free -h) >> $log_path;

Threshold=80

# Get total and used memory in Megabytes
Total_memory=$(free -m | awk '/^Mem:/{print $2}')
Used_memory=$(free -m | awk '/^Mem:/{print $3}')

# Calculate percentage
Percentage_used=$(echo "scale=2; $Used_memory / $Total_memory * 100" | bc | cut -d. -f1)

#Check if memory usage exceeds the set threshold and display a worning message
if [ "$Percentage_used" -ge "$Threshold" ]; then
    echo "[WARN] Memory usage is critical: ${Percentage_used}% (Used_memory MB)" >> $log_path
        /mnt/c/Windows/System32/cmd.exe /c msg \* "[Critical] Memory Usage: ${Percentage_used}%" & #pop up message in windows
else
    echo "[INFO] Memory usage is healthy: ${Percentage_used}%" >> $log_path
fi

#Extract the IP address from eth0 interface and append network IP address
IP=$(timeout 10 ip addr show eth0 | grep "inet " | awk '{print $2}')
printf "Network IP: %s\n" "$IP" >> $log_path

#System uptime in human-readable format
echo "System Uptime: $(uptime -p)" >> $log_path

#Count and log the number of processes running for the current user
echo "Number of processes: $(ps -u abim --no-header| wc -l  )" >>  $log_path;