gistfile1.txt

#!/bin/bash

# network
declare hostname
declare net_usage				# todo
# hardware
declare ram_usage
declare swap_usage
declare cpu_usage
declare cpu_temp 				# todo
declare hdd_usage
# directories
declare home_usage
declare var_usage
# security
declare logged_users
declare last_login
# services
declare uptime
declare httpd_up
declare vnc_up
declare znc_up
declare quake_up
declare redis_up

declare kernel=`uname`

declare template=''
template+='Host:%30s\n'
template+='------------Hardware----------\n'
template+='Ram:%10s\tSwap:%10s\n'
template+='Cpu:%10s\tTemp:%10s\n'
template+='-------------System------------\n'
template+='/home:%8s  /var:%10s\n'
template+='Hdd usage:%21s  \n'
template+='Users logged in:%15s  \n'
template+='Last login:%20s  \n'
template+='Uptime:%24s  \n'
template+='------------Services-----------\n'
template+='WWW:%7s ZNC:%7s  VNC:%7s\n'
template+='Quake:%5s Redis:%5s\n'

declare is_linux

if [ "$uname" == "Linux" ]
then
	is_linux=1
else
	is_linux=0
fi


function get_stats {
	hostname=`hostname`
	uptime=`uptime | awk -F, '{sub(".*up ",x,$1);print $1}'`
	cpu_usage=$(get_cpu_usage)
	cpu_temp="N/A"
	home_usage=`du -sh /home 2> /dev/null | awk '{print $1}'`
	var_usage=`du -sh /var 2> /dev/null | awk '{print $1}'`
	hdd_usage=`df / 2> /dev/null | awk 'END{print $5}'`
	ram_usage=$(get_ram_usage)
	swap_usage=$(get_swap_usage)
	logged_users=`who | awk '{ print $1 }' | sort | uniq | wc -l`
	last_login=$(get_last_login)
	
	local fail_sign="⨯"
	local ok_sign="✓"
	
	[[ `ps aux | grep httpd | wc -l | awk '{print $1}'` == "1" ]] && httpd_up=$fail_sign || httpd_up=ok_sign
	[[ `ps aux | grep vnc | wc -l | awk '{print $1}'` == "1" ]] && vnc_up=$fail_sign || vnc_up=ok_sign
	[[ `ps aux | grep znc | wc -l | awk '{print $1}'` == "1" ]] && znc_up=$fail_sign || znc_up=ok_sign
	[[ `ps aux | grep darkplaces | wc -l | awk '{print $1}'` == "1" ]] && quake_up=$fail_sign || quake_up=ok_sign
	[[ `ps aux | grep redis | wc -l | awk '{print $1}'` == "1" ]] && redis_up=$fail_sign || redis_up=ok_sign
}


function render_stats {
	get_stats
	
	printf "$template" "$hostname" "$ram_usage" "$swap_usage" \
	"$cpu_usage" "$cpu_temp" "$home_usage" "$var_usage" "$hdd_usage" \
	"$logged_users" "$last_login" "$uptime" "$httpd_up" "$znc_up" "$vnc_up" \
	"$quake_up" "$redis_up"
	
	#echo $hostname
	#echo $ram_usage
	#echo $swap_usage
	#echo $cpu_usage
	#echo $cpu_temp
	#echo $hdd_usage
	#echo $home_usage
	#echo $var_usage
	#echo $logged_users
	#echo $last_login
	#echo $uptime
	#echo $httpd_up
	#echo $vnc_up
	#echo $znc_up
	#echo $quake_up
	#echo $redis_up
}

function show_tick {
	local sign
	if [ $1 == 0 ]
	then
		sign="⨯"
	else
		sign="✓"
	fi
	echo "$sign"
}

function get_last_login {
	local last_login
	
	if [ $is_linux == "1" ]
	then
		last_login=`tail -n 1 /var/log/secure | awk '{print $1 " " $2 " " $3}'`
	else
		last_login=`tail -n 1 /var/log/authd.log | awk '{print $1 " " $2 " " $3}'`
	fi
	
	echo "$last_login"
}

function get_swap_usage {
	local swap_usage
	
	if [ $is_linux == "1" ]
	then
		swap_usage=`free -m | awk 'NR==4{print $2 "MB"}'` #todo remove float point
	else
		swap_usage="N/A" #todo get Swap on mac
	fi
	
	echo "$cpu_usage"
}

function get_ram_usage {
	local ram_usage
	
	if [ $is_linux == "1" ]
	then
		ram_usage=`free -m | awk 'NR==2{print $2 "MB"}'` #todo remove float point
	else
		ram_usage="N/A" #todo get RAM on mac
	fi
	
	echo "$cpu_usage"
}

function get_cpu_usage {
	local cpu_usage
	
	if [ $is_linux == "1" ]
	then
		cpu_usage=`grep 'cpu ' /proc/stat | awk '{usage=(($2+$4)*100/($2+$4+$5))} END {print usage "%"}'` #todo remove float point
	else
		cpu_usage="N/A" #todo get CPU on mac
	fi
	
	echo "$cpu_usage"
}


render_stats