system-health.sh

#!/bin/bash
# set -exo pipefail # this can be used if the user want to open in debugger mode with pipefail safe option along  with it 
echo "============================================"
echo " System Health Report for $HOSTNAME"
echo " Generated on: $(date | awk '{print $1, $2, $3, $4}')"
echo " Generated by: Ankit"
echo "============================================"

# Disk Usage 
echo -e "\nDisk Usage:"
printf "%-20s %-10s %-10s %-10s %-6s %-s\n" "Filesystem" "Size" "Used" "Avail" "Use%" "Mounted on"
df -h --output=source,size,used,avail,pcent,target | tail -n +2

# CPU Load
echo -e "\nCPU Load (1/5/15 min average):"
uptime | awk -F'load average:' '{ print "  " $2 }'

# Memory Usage
echo -e "\nMemory Usage:"
free -h | awk 'NR==1 || /Mem|Swap/ { printf "  %-10s %-10s %-10s %-10s %-10s %-10s\n", $1, $2, $3, $4, $5, $6 }'

# Failed Services
echo -e "\nFailed Systemd Services:"
FAILED=$(systemctl --failed --no-legend)
if [ -z "$FAILED" ]; then
	 echo "  No failed services."
else
        echo "$FAILED" | while read -r line; do
        echo "  $line"
done
fi

# Top 5 Memory-Consuming Processes
echo -e "\nTop 5 Memory Consuming Processes:"
ps -eo user,pid,%cpu,%mem,command --sort=-%mem | head -n 6 | \
awk '{ printf "  %-10s %-6s %-6s %-6s %-s\n", $1, $2, $3, $4, substr($0, index($0,$5), 60) }'

# Top 5 CPU-Consuming Processes
echo -e "\nTop 5 CPU Consuming Processes:"
ps -eo user,pid,%cpu,%mem,command --sort=-%cpu | head -n 6 | \
awk '{ printf "  %-10s %-6s %-6s %-6s %-s\n", $1, $2, $3, $4, substr($0, index($0,$5), 60) }'

# Uptime
echo -e "\nSystem Uptime:"
echo "  $(uptime -p)"

# Package Updates
echo -e "\nAvailable Package Updates:"
if command -v apt &> /dev/null; then
	UPDATES=$(apt list --upgradable 2>/dev/null | grep -v "Listing...")
	if [ -z "$UPDATES" ]; then
	    echo "  System is up to date."
	else
	    echo "$UPDATES" | awk '{ print "  " $0 }'
	fi
elif command -v dnf &> /dev/null; then
    dnf check-update || echo "  System is up to date."
elif command -v yum &> /dev/null; then
    yum check-update || echo "  System is up to date."
else
    echo "  Package manager not supported."
fi

echo -e "\nEnd of Report"