#!/bin/bash

#

# 10-sysinfo - generate the system information

# Copyright (c) 2013 Nick Charlton

#

# Authors: Nick Charlton <hello@nickcharlton.net>

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License along

# with this program; if not, write to the Free Software Foundation, Inc.,

# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

date=`date`

load=`cat /proc/loadavg | awk '{print $1}'`

root_usage=`df -h / | awk '/\// {print $(NF-1)}'`

memory_usage=`free -m | awk '/Mem:/ { total=$2 } /buffers\/cache/ { used=$3 } END { printf("%3.1f%%", used/total*100)}'`

swap_usage=`free -m | awk '/Swap/ { printf("%3.1f%%", "exit !$2;$3/$2*100") }'`

users=`users | wc -w`

time=`uptime | grep -ohe 'up .*' | sed 's/,/\ hours/g' | awk '{ printf $2" "$3 }'`

processes=`ps aux | wc -l`

ip=`ifconfig $(route | grep default | awk '{ print $8 }') | grep "inet addr" | awk -F: '{print $2}' | awk '{print $1}'`

echo "System information as of: $date"

echo

printf "System load:\t%s\tIP Address:\t%s\n" $load $ip

printf "Memory usage:\t%s\tSystem uptime:\t%s\n" $memory_usage "$time"

printf "Usage on /:\t%s\tSwap usage:\t%s\n" $root_usage $swap_usage

printf "Local Users:\t%s\tProcesses:\t%s\n" $users $processes

echo