#!/bin/sh
export LC_ALL=C

# check if bc installed
if ! which bc > /dev/null; then
    echo bc not installed.
    exit 1
fi

# run calculation
(
    echo -n `uptime|grep day|sed 's/.*up \([0-9]*\) day.*/\1\/10+/'`
    echo -n `cat /proc/cpuinfo|grep '^cpu MHz'|awk '{print $4"/30 +";}'`
    echo -n `free|grep '^Mem'|awk '{print $2"/1024/3+"}'`
    echo `df -P -k -x nfs -x smbfs | egrep -v '(1k|1024)-blocks' | awk '{if ($1 ~ "/dev/(cciss|scsi|sd|gpfs)"){ s+= $2} s+= $2;} END {print s"/1024/50/15+70";}'`
) | bc | sed 's/\(.$\)/.\1cm/'