Dynamic “Cdaprod” ascii + MOTD

00-custom-motd.sh

# Sudo tee and EOF removed for scriptable runs.
#sudo tee /etc/update-motd.d/00-custom > /dev/null <<'EOF'
#!/usr/bin/env bash

# Colors
GREEN="\e[32m"
YELLOW="\e[33m"
CYAN="\e[36m"
MAGENTA="\e[35m"
RED="\e[31m"
RESET="\e[0m"

# Exit if in tmux session to avoid duplicate MOTD display
if [[ -n "$TMUX" ]]; then
  exit 0
fi

# Get system info
HOSTNAME=$(hostname)
OS=$(lsb_release -d | cut -f2)
KERNEL=$(uname -r)
UPTIME=$(uptime -p)
LOAD=$(uptime | awk -F'load average:' '{ print $2 }')
MEMORY=$(free -m | awk '/Mem/ {printf "%.2f%%", $3/$2*100}')
DISK=$(df -h / | awk '/\// {print $5}')
BOOT_DISK=$(df -h /boot | awk '/\// {print $5}')
CPU=$(top -bn1 | grep "Cpu(s)" | awk '{print $2 + $4 "%"}')

# Check if Docker is running and list containers
if command -v docker &> /dev/null && [ "$(systemctl is-active docker)" == "active" ]; then
  DOCKER_CONTAINERS=$(docker ps --format "{{.Names}}" | wc -l)
  DOCKER_MSG="Docker: $DOCKER_CONTAINERS containers running"
else
  DOCKER_MSG="Docker: Inactive or not installed"
fi

# Get current date and time
DATE=$(date +"%A, %B %d, %Y %H:%M:%S")

# Define ASCII logo for Cdaprod Pi
LOGO="
${CYAN}  _____   __                      __
 / ___/__/ /__ ____  _______  ___/ /
/ /__/ _  / _ \`/ _ \/ __/ _ \/ _  / 
\___/\_,_/\_,_/ .__/_/  \___/\_,_/  
             /_/                    
${RESET}
"

# Print the logo
echo -e "$LOGO"

# Print system info inside a bordered layout
echo -e "${CYAN}+----------------------------------------+${RESET}"
echo -e "${GREEN}| Host:       ${RESET}$HOSTNAME"
echo -e "${GREEN}| OS:         ${RESET}$OS"
echo -e "${GREEN}| Kernel:     ${RESET}$KERNEL"
echo -e "${GREEN}| Uptime:     ${RESET}$UPTIME"
echo -e "${GREEN}| CPU Usage:  ${RESET}$CPU"
echo -e "${GREEN}| Memory:     ${RESET}$MEMORY"
echo -e "${GREEN}| Disk Usage: ${RESET}$DISK"
echo -e "${GREEN}| /boot Usage:${RESET} $BOOT_DISK"
echo -e "${GREEN}| Load Avg:   ${RESET}$LOAD"
echo -e "${YELLOW}| Date:       ${RESET}$DATE"
echo -e "${RED}| $DOCKER_MSG${RESET}"
echo -e "${CYAN}+----------------------------------------+${RESET}"
#EOF