Automated Bash System Health Monitor for Linux Servers

[marius]

Introduction: This script monitors system health by checking CPU usage, memory, and disk space on Linux servers. It can be used to quickly assess the overall performance of your system.

#!/bin/bash
# System Health Monitor
cpu_usage=$(top -bn1 | grep 'Cpu(s)' | \
           sed 's/.*, *\([0-9.]*\)%* id.*/\1/' | \
           awk '{print 100 - $1"%"}')
mem_usage=$(free -m | awk 'NR==2{printf "%s/%sMB", $3,$2 }')
disk_usage=$(df -h | awk '$NF=="/"{printf "%d/%dGB", $3,$2}')

echo "CPU Usage: $cpu_usage"
echo "Memory Usage: $mem_usage"
echo "Disk Usage: $disk_usage"

Instructions:
1. Save the script as

system_health.sh

.
2. Make it executable using

chmod +x system_health.sh

.
3. Run the script by typing

./system_health.sh

in your terminal.

Example Output:

CPU Usage: 15.3%
Memory Usage: 2048/4096MB
Disk Usage: 40/100GB