#!/bin/bash
ID='SERVER1'
CPU_COUNT=`cat /proc/cpuinfo | grep processor | wc -l`
MAX_CPU=$(($CPU_COUNT * 100))
printf -v date '%(%Y-%m-%d %H:%M:%S)T' -1
CPU_USAGE=`ps -ax -h -o pcpu | paste "-sd+" | bc`
MEM_USAGE=`free -m | grep 'Mem:' | awk -v OFS="," '{print ($2,$3,$4,$5,$6,$7)}'`
LOAD_AVG=`awk -v OFS="," '{split($4,arr,"/")} {print $1,$2,$3,arr[2]}' /proc/loadavg`
NET_USAGE=`awk -v ORS="," 'NR>2{print $1,$2,$9}' /proc/net/dev`
OUTPUT=$ID','$date','$CPU_USAGE','$MAX_CPU','$MEM_USAGE','$LOAD_AVG','$NET_USAGE
# to trim that last awkward comma
echo $OUTPUT | awk '{gsub(/,$/,""); print $0}'