System Monitoring Dashboard

Beginner5 minTrending

Build a quick system monitoring overview using standard Linux commands to check CPU, memory, disk, and network status.

Prerequisites

-Linux shell access

Steps

Check system uptime and load average

View how long the system has been running and the current load average.

$ uptime

Load average numbers represent 1-min, 5-min, and 15-min averages. Values should be below the number of CPU cores.

View memory usage

Check total, used, free, and available memory.

$ free -h

Focus on the 'available' column, not 'free'. Linux uses free RAM for disk cache, which is reclaimable.

Check disk usage

View disk space usage across all mounted filesystems.

$ df -h --type=ext4 --type=xfs --type=btrfs 2>/dev/null || df -h | grep -v tmpfs

View top processes by resource usage

See the most resource-intensive processes sorted by CPU usage.

$ ps aux --sort=-%cpu | head -15

Full Script

full-script.sh

#!/bin/bash
# System Monitoring Dashboard
set -euo pipefail

echo "========================================="
echo "  System Monitoring Dashboard"
echo "========================================="

echo ""
echo "--- Hostname & Uptime ---"
hostname
uptime

echo ""
echo "--- CPU Info ---"
nproc && echo "cores"
grep 'model name' /proc/cpuinfo | head -1 | cut -d: -f2

echo ""
echo "--- Memory ---"
free -h

echo ""
echo "--- Disk Usage ---"
df -h | grep -v tmpfs | grep -v udev

echo ""
echo "--- Top 5 Processes (CPU) ---"
ps aux --sort=-%cpu | head -6

echo ""
echo "--- Top 5 Processes (Memory) ---"
ps aux --sort=-%mem | head -6

echo ""
echo "--- Network Interfaces ---"
ip -brief addr 2>/dev/null || ifconfig -a 2>/dev/null | grep -E '^[a-z]|inet '

echo ""
echo "========================================="

FAQ

Discussion

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#!/bin/bash # System Monitoring Dashboard set -euo pipefail echo "=========================================" echo " System Monitoring Dashboard" echo "=========================================" echo "" echo "--- Hostname & Uptime ---" hostname uptime echo "" echo "--- CPU Info ---" nproc && echo "cores" grep 'model name' /proc/cpuinfo | head -1 | cut -d: -f2 echo "" echo "--- Memory ---" free -h echo "" echo "--- Disk Usage ---" df -h | grep -v tmpfs | grep -v udev echo "" echo "--- Top 5 Processes (CPU) ---" ps aux --sort=-%cpu | head -6 echo "" echo "--- Top 5 Processes (Memory) ---" ps aux --sort=-%mem | head -6 echo "" echo "--- Network Interfaces ---" ip -brief addr 2>/dev/null || ifconfig -a 2>/dev/null | grep -E '^[a-z]|inet ' echo "" echo "========================================="