Bash Script: System Resource Monitor Script

#!/bin/bash


# Function to get current date and time

get_date() {

    date +"%Y-%m-%d %H:%M:%S"

}
# Function to monitor CPU, Memory, and Disk usage

monitor_resources() {

    while true; do

        # Get current date and time

        current_date=$(get_date)
        # Get CPU usage

        cpu_usage=$(top -bn1 | grep "Cpu(s)" | \

            sed "s/.*, *\([0-9.]*\)%* id.*/\1/" | \

            awk '{print 100 - $1}')
        # Get Memory usage

        memory_usage=$(free | grep Mem | awk '{print $3/$2 * 100.0}')
        # Get Disk usage

        disk_usage=$(df -h / | awk '$NF=="/"{printf "%s", $5}')
        # Log data to file

        echo "$current_date - CPU: $cpu_usage%, Memory: $memory_usage%, Disk: $disk_usage" >> resource_monitor.log
        # Sleep for 5 seconds

        sleep 5

    done

}

# Start monitoring resources monitor_resources

This Bash script monitors system resources such as CPU, memory, and disk usage. It includes functions to get the current date and time, as well as to monitor the resources continuously. The script uses commands like `top`, `free`, and `df` to gather CPU, memory, and disk usage data respectively. The data is then logged to a file named `resource_monitor.log` with timestamps for later analysis.

This script can be run in the background to continuously monitor system resources and log the data for tracking trends or identifying performance issues.