motdd
This script was created with inspiration of mewbies motd.tcl script
Message of the Day
This repository contains a script named message_of_the_day, which provides a detailed overview of the system's current state each time a user logs into a Unix-like operating system. This script displays various system metrics like CPU usage, memory usage, disk space, network information, and more.
Features
- System Information: Displays CPU model, architecture, core count, and generation.
- CPU Load: Shows system load for 1, 5, and 15 minutes intervals.
- Disk Space: Details about the disk space usage.
- GPU Information: (If available) Provides details about the GPU and its memory usage.
- Last Login: Information about the last login session.
- Memory Usage: Detailed memory usage including free and cached memory.
- Virtual Memory: (If applicable) Used and free virtual memory.
- Network Information: Details about network interface, speed, IPv6 status, WAN and LAN IPs.
- Process Count: Number of total running processes and user-specific processes.
- Uptime: System uptime in days, hours, minutes, and seconds.
Prerequisites
To use this script, you need: - A Unix-like operating system. - Required tools: awk, curl, ifconfig, date, figlet (optional for header display).
Script
Fulls cript written in pure Bash
#!/usr/bin/env bash
# - iNFO --------------------------------------
#
# Author: wuseman <wuseman@nr1.nu>
# FileName: wbanner.sh
# Created: 2023-08-29 (20:28:25)
# Modified: 2023-12-20 (11:50:00)
#
# ---------------------------------------------
message_of_the_day() {
user="$LOGNAME"
path="$PWD"
home="$HOME"
if [[ ! "$path" == /home* && ! "$path" == /usr/home* ]]; then
exit 0
fi
lastlogin=$(last | head -n1 | awk '{print $3}')
if [[ "$lastlogin" == ":0" ]]; then
lastlogin="x11"
fi
last_login_ip="$(lastlog -u wuseman | awk 'NR==2{print $3}')"
last_login_time=$(lastlog -u "$user" | awk 'NR == 2 {print $7}')
current_date=$(date +"%Y-%m-%d")
formatted_time=$(date -d "$last_login_time" +"%H:%M:%S" 2>/dev/null)
formatted_date=$(date -d "$latest_login" +"%Y-%m-%d - %H:%M:%S")
last_ip_login=$(lastlog -u "$user" | awk '/wuseman/ {print $3}' | tail -n 1)
uptime=$(cut -d. -f1 /proc/uptime)
up_days=$((uptime / 60 / 60 / 24))
up_hours=$((uptime / 60 / 60 % 24))
up_mins=$((uptime / 60 % 60))
up_secs=$((uptime % 60))
psa=$(($(ps -A h | wc -l) - 000))
psu=$(($(ps U "$user" h | wc -l) - 002))
verb="are"
if [ "$psu" -lt 2 ]; then
if [ "$psu" -eq 0 ]; then
psu="none"
else
verb="is"
fi
fi
loadavg=$(cat /proc/loadavg)
sysload=($(echo "$loadavg" | awk '{print $1, $2, $3}'))
memory_info=$(free -m | grep "Mem:")
used_memory=$(echo "$memory_info" | awk '{print $3}')
free_memory=$(echo "$memory_info" | awk '{print $4}')
free_cached_memory=$(echo "$memory_info" | awk '{print $6}')
used_virtual_memory=$(echo "$memory_info" | awk '{print $5}')
free_virtual_memory=$(echo "$memory_info" | awk '{print $7}')
disk_space_info=$(df -h | awk '$NF=="/" {print "Total: " $2, "Used: " $3, "Free: " $4}')
used_disk_space=$(echo "$disk_space_info" | awk '{print $4}')
free_disk_space=$(echo "$disk_space_info" | awk '{print $8}')
ipv6_status=$(cat "/sys/module/ipv6/parameters/disable_ipv6")
if [ "$ipv6_status" -eq 0 ]; then
ipv6_message="IPv6: Enable"
else
ipv6_message="IPv6: Disable"
fi
network_interface=$(route | grep -m1 ^default | awk '{print $NF}')
network_speed=$(cat "/sys/class/net/$network_interface/speed")
wan_ip=$(curl -s ifconfig.me)
lan_ip=$(ifconfig | grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | awk '{print $2}' | grep -v '127.0.0.1' | head -n1)
if [ -n "$wan_ip" ]; then
wanip="$wan_ip"
else
wanip="Offline"
fi
if [ -n "$lan_ip" ]; then
lanip="$lan_ip"
else
lanip="Offline"
fi
if [ -n "$DISPLAY" ] && [ -t 1 ]; then
gpu_info=$(glxinfo | grep "OpenGL renderer string")
gpu_info=${gpu_info#*: }
gpu_mem="$(glxinfo | grep -iP -o "(?<=Video memory: )\d+MB")"
fi
cpu_model=$(cat /proc/cpuinfo | grep "model name" | head -n 1 | cut -d ':' -f 2 | sed -e 's/^[ \t]*//')
cpu_architecture=$(uname -m)
cpu_cores=$(nproc)
if [ -f "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq" ] && [ -f "/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq" ]; then
max_cpu_frequency=$(cat "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq")
current_cpu_frequency=$(cat "/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq")
else
max_cpu_frequency="N/A"
current_cpu_frequency="N/A"
fi
cpu_generation=$(awk -F ': | ' '/cpu family/ {print $3 "th"; exit}' /proc/cpuinfo)
cache_size=$(awk '/cache size/ {print $4/1024 " MB"; exit}' /proc/cpuinfo)
cpu_mhz=$(awk '/cpu MHz/ {print $4; exit}' /proc/cpuinfo)
print_info() {
info_name="$1:"
info_value="$2"
padding_length=$((16 - ${#info_name}))
padding_dots=$(printf '%*s' "$padding_length" | tr ' ' '.')
echo -e " \033[35m$info_name\033[0m\033[36m $padding_dots\033[0m \033[36m$info_value\033[0m"
}
print_header_if_possible() {
if command -v figlet >/dev/null 2>&1; then
# Figlet is installed, create and print the header.
local header
# header=$(figlet "$user")
header=$(figlet " $HOSTNAME")
echo -e "\033[01;32m${header}\033[0m\n"
fi
}
print_header_if_possible "$user"
print_info "CPU" "$cpu_model ($cpu_architecture, $cpu_cores cores, $cpu_generation generation)"
print_info "CPU Load" "${sysload[0]} (1 minute) ${sysload[1]} (5 minutes) ${sysload[2]} (15 minutes)"
print_info "Disk Space" "$disk_space_info"
if [ -n "$DISPLAY" ] && [ -t 1 ]; then
print_info "GPU Info" "$gpu_info (Virtual Memory: $gpu_mem)"
fi
print_info "Last Login" "$current_date / $formatted_time from $last_login_ip"
print_info "Memory" "Used: $used_memory MB Free: $free_memory MB Free Cached: $free_cached_memory MB"
if [ -n "$used_virtual_memory" ] && [ "$used_virtual_memory" != "0" ]; then
print_info "Virtual Memory" "Used: $used_virtual_memory MB Free: $free_virtual_memory MB"
fi
print_info "Network Info" "NIC: $network_interface Speed: $network_speed ($ipv6_message) ($wanip/$lanip)"
print_info "Processes" "$psa total running, $psu $verb yours"
print_info "Uptime" "${up_days} days ${up_hours} hours ${up_mins} minutes ${up_secs} seconds"
echo
}
message_of_the_day