#! /usr/bin/env bash

# Basic info
HOSTNAME=`uname -n`
OSVERSION=`hostnamectl | grep "Operating System" | sed 's/^.*: //'`
CURRENTTIME=`date +"%Y-%m-%d %H:%M:%S"`
UPTIMEP=`uptime -p`
BOOTTIME=`uptime -s`
CONNECTEDUSERS=`who | wc -l`

# System load
MEMORY1=`free -t -m | grep Total | awk '{print $3" MB";}'`
MEMORY2=`free -t -m | grep "Mem" | awk '{print $2" MB";}'`
MEMORY3=`free -t -m | grep Mem | awk '{print $3/$2 * 100.0}'`
MEMORY4=`printf %.0f $MEMORY3`
LOAD1=`cat /proc/loadavg | awk {'print $1'}`
LOAD5=`cat /proc/loadavg | awk {'print $2'}`
LOAD15=`cat /proc/loadavg | awk {'print $3'}`
PROCESSES=`ps ax | wc -l | tr -d " "`
SWAPSTAT=`free -m | tail -n 1 | awk '{print $3}'`
USAGEROOT=`df -Ph | grep /$ | awk '{print $5 " of " $2}'`
IPADDRESSES=`ip a|grep -oP "inet \K[0-9.]*(?=.*[^ ][^l][^o]$)"`

{% if base_core_motd_banner != '' %}
BANNER='
{{ base_core_motd_banner }}
'

echo "$BANNER
*********************************************************************
{% else %}
echo "*********************************************************************
{% endif %}
 - Hostname............: $HOSTNAME
 - Operating System....: $OSVERSION
 - Uptime..............: $UPTIMEP
 - Current Time........: $CURRENTTIME
 - Boot Time...........: $BOOTTIME
 - Logged on users.....: $CONNECTEDUSERS
*********************************************************************
 - Running Processes...: $PROCESSES
 - CPU usage...........: $LOAD1, $LOAD5, $LOAD15 (1, 5, 15 min)
 - Memory usage........: $MEMORY1 / $MEMORY2 ($MEMORY4%)
 - Swap in use.........: $SWAPSTAT MB
 - Usage of /..........: $USAGEROOT
 - IP Addresses........: $IPADDRESSES
*********************************************************************
"