#!/bin/bash
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin;
clear;
echo '=============================================================';
echo ' [LNMP/Nginx] Amysql Host - AMH 4.1 ';
echo ' http://Amysql.com';

sys_name=`sed '1q' /etc/issue`;
sys_bit='32';
[ `getconf WORD_BIT` == '32' ] && [ `getconf LONG_BIT` == '64' ] && sys_bit='64';
IP=`ifconfig | grep 'inet addr:'| grep -v '127.0.0.*' | cut -d: -f2 | awk '{ print $1}'`;
cpu_name=`cat /proc/cpuinfo | grep 'model name' | awk '{ for(i=4 ; i<=NF; i++){ print $i} }'`;
cpu_num=`grep -c 'model name' /proc/cpuinfo`;

#cpu utilization.
head_str=`head -1 /proc/stat`;
cpu_total=`echo "$head_str" | awk '{print $2+$3+$4+$5+$6+$7+$8}'`;
cpu_user=`echo "$head_str" | awk '{print $2}'`;
cpu_system=`echo "$head_str" | awk '{print $4}'`;
sleep 0.2;
head_str=`head -1 /proc/stat`;
cpu_total_b=`echo "$head_str" | awk '{print $2+$3+$4+$5+$6+$7+$8}'`;
cpu_user_b=`echo "$head_str" | awk '{print $2}'`;
cpu_system_b=`echo "$head_str" | awk '{print $4}'`;
cpu_total=$[$cpu_total_b-$cpu_total];
cpu_user=$[$cpu_user_b-$cpu_user];
cpu_system=$[$cpu_system_b-$cpu_system];
cpu_use=`echo "$cpu_user $cpu_system $cpu_total" | awk '{printf("%.2f", ($1+$2)*100/$3)}'`;

uptime_str=`uptime`;
up_time=`echo "$uptime_str" | cut -f 1 -d "," | awk '{ print $3 $4 $5 $6}'`;
sys_load=`echo "$uptime_str" | awk '{print $(NF-2), $(NF-1), $NF}' `;

free_m_str=`free -m`;
ram_total=`echo "$free_m_str" | grep 'Mem' | awk '{print $2}'`;
ram=`echo "$free_m_str" | grep 'buffers/cache' | awk '{print $3}'`;

df_sum=0;
df_use=0;
while read result; do
# set -- $result;

i=0;
for value in $result; do
val='';
{ echo $value | grep -q '^[0-9\.]\{1,\}M$' && val=`echo $value | sed 's#M##' | awk '{printf("%.2f", $1/1024)}'`; } || \
{ echo $value | grep -q '^[0-9\.]\{1,\}G$' && val=`echo $value | sed 's#G##'`; } || \
{ echo $value | grep -q '^[0-9\.]\{1,\}T$' && val=`echo $value | sed 's#T##' | awk '{printf("%.2f", $1*1024)}'`; }
if [ "$val" != '' -a "$i" == 0 ]; then
df_sum=`echo "$df_sum $val" | awk '{print $1+$2}'`;
i=$;
elif [ "$i" == 1 ]; then
[ "$val" != '' ] && df_use=`echo "$df_use $val" | awk '{print $1+$2}'`;
break;
fi;
done;
done << EOT
`df -h`
EOT

echo "Linux: ${sys_name} - ${sys_bit}BIT";
echo "UpTime: ${up_time} online.";
echo "Time: ${dates} ${times}";
echo "LA: ${sys_load}";
echo "IP: ${IP}";
echo "CPU: ${cpu_use}%us, ${cpu_num}*CPU - "${cpu_name};
echo "RAM: ${ram}MB / ${ram_total}MB";
echo "HD: ${df_use}GB / ${df_sum}GB";
echo "";