#!/bin/bash

while true; do
    echo "Timestamp: $(date +"%Y-%m-%d %H:%M:%S")" >> system_usage.log

    # CPU 사용량
    echo "CPU Usage:" >> system_usage.log
    top -bn1 | grep "Cpu(s)" | awk '{print "CPU Load: " $2 + $4 "%"}' >> system_usage.log

    # 메모리 사용량
    echo "Memory Usage:" >> system_usage.log
    free -m | awk 'NR==2{printf "Memory Usage: %.2f%%\n", $3*100/$2 }' >> system_usage.log

    # 디스크 사용량
    echo "Disk Usage:" >> system_usage.log
    df -h | awk '$NF=="/"{printf "Disk Usage: %s\n", $5}' >> system_usage.log

    # 네트워크 사용량 (네트워크 인터페이스 이름을 eth0로 가정)
    echo "Network Usage:" >> system_usage.log
    ifstat -i eth0 1 1 | awk 'NR==4{printf "Network In: %s KB/s, Out: %s KB/s\n", $6, $8}' >> system_usage.log

    echo "---------------------------------" >> system_usage.log
    sleep 60
done