Use this shell script to find out about your server's resource usage.

monitor.sh

#!/bin/bash

# Get CPU information
CPU_MODEL=$(grep "model name" /proc/cpuinfo | awk -F: '{print $2}' | sed 's/^[\t]*//' | head -1)
CPU_CORES=$(grep "cpu cores" /proc/cpuinfo | awk -F: '{print $2}' | sed 's/^[\t]*//' | head -1)
CPU_THREADS=$(grep "siblings" /proc/cpuinfo | awk -F: '{print $2}' | sed 's/^[\t]*//' | head -1)
CPU_USAGE=$(top -bn1 | grep "Cpu(s)" | sed "s/.*, *\([0-9.]*\)%* id.*/\1/" | awk '{print 100 - $1}')

# Get memory information
MEM_TOTAL=$(cat /proc/meminfo | grep MemTotal | awk '{print $2}')
MEM_FREE=$(cat /proc/meminfo | grep MemFree | awk '{print $2}')
MEM_USED=$((MEM_TOTAL - MEM_FREE))

# Get disk information
DISK_USED=$(df -h --output=source,used /dev/* | awk '/^\/dev/{print $1" "$2}')
DISK_FREE=$(df -h --output=source,avail /dev/* | awk '/^\/dev/{print $1" "$2}')
DISK_TOTAL=$(df -h --output=source,size /dev/* | awk '/^\/dev/{print $1" "$2}')

# Get network information
IP_ADDRESS=$(hostname -I | awk '{print $1}')
NETMASK=$(ip addr show | grep -w "inet" | awk '{print $2}')
GATEWAY=$(ip route show default | awk '/default via/ {print $3}')

# Get user information
USERS=$(who | awk '{print $1}')

# Get uptime information
UPTIME=$(uptime -p)

# Get swap information
SWAP_ENABLED=$(swapon -s | tail -n +2 | wc -l)
if [ "$SWAP_ENABLED" != "0" ]; then
  SWAP_TOTAL=$(free -b | awk 'NR==4{print $2}')
  SWAP_USED=$(free -b | awk 'NR==4{print $3}')
  SWAP_FREE=$(free -b | awk 'NR==4{print $4}')
else
  SWAP_TOTAL="N/A"
  SWAP_USED="N/A"
  SWAP_FREE="N/A"
fi

# Get list of network interfaces
INTERFACES=($(cat /proc/net/dev | awk -F':' '{print $1}' | grep -vE "^ *(Inter|face)"))

# Output results
echo "CPU Model: $CPU_MODEL"
echo "CPU Cores: $CPU_CORES"
echo "CPU Threads: $CPU_THREADS"
echo "CPU Usage: $CPU_USAGE %"

echo "Total Memory: $MEM_TOTAL B"
echo "Used Memory: $MEM_USED B"
echo "Free Memory: $MEM_FREE B"

echo "Disk Information:"
echo "$DISK_TOTAL" | while read disk size; do
  used=$(echo "$DISK_USED" | grep "$disk" | awk '{sum += $2} END {print sum "GB"}')
  free=$(echo "$DISK_FREE" | grep "$disk" | awk '{sum += $2} END {print sum "GB"}')
  echo "  $disk: Used $used, Free $free"
done

echo "IP Address: $IP_ADDRESS"
echo "Netmask: $NETMASK"
echo "Gateway: $GATEWAY"

echo "Users: $USERS"

echo "Uptime: $UPTIME"

echo "Swap Total: $SWAP_TOTAL"
echo "Swap Used: $SWAP_USED"
echo "Swap Free: $SWAP_FREE"

# Print table header
printf '%-12s %-20s %s\n' "INTERFACE" "RX" "TX"
# Loop through each interface and retrieve RX and TX stats
for INTERFACE in "${INTERFACES[@]}"; do
    if [[ "$INTERFACE" == *":"* ]]; then
        INTERFACE="${INTERFACE%:*}"
    fi
    STATS=$(cat /proc/net/dev | grep -w "$INTERFACE" | awk '{print $2,$10}')
    RX=$(echo "$STATS" | awk '{print $1}')
    TX=$(echo "$STATS" | awk '{print $2}')

    if [[ $RX != "" && $TX != "" ]]; then
        printf '%-12s %-20s %s\n' "$INTERFACE" "$RX bytes" "$TX bytes"
    else
        printf '%-12s %-20s %s\n' "$INTERFACE" "No RX or TX traffic" ""
    fi
done


exit 0