#!/bin/sh

###############################################################
#  Script     : 15-hwstats
#  Author     : Petr Všetečka
#  Email      : vsetecka@cesnet.cz
#  Date       : 27/11/2018
#  Description: prints current time and usage of CPU, RAM & HDD
#  Args       : none
###############################################################


printf "\nSystem information as of "; date
printf "\n"

# CPU
printf "  CPU load: "; cat /proc/loadavg | awk '{ printf "%s %s %s", $1, $2, $3; }'
printf " ("
printf $(($(ps -e --no-headers | wc -l) - 1))
printf " processes)\n"
# RAM
free -m | awk '/Mem/  { printf "  Memory:  %4sM  (%2d%%)  out of %2.1fG\n", $3, ($3/$2) * 100, $2/1000; }
               /Swap/ { 
                        if ( $3 == 0 )
                            printf "  Swap:     not available\n";
                        else
                            printf "  Swap:    %4sM  (%2d%%)  out of %2.1fG\n", $3, ($3/$2) * 100, $2/1000;

                      }'
# Disk
df -h   | awk '/^\//  { printf "  Disk:    %5s  (%3s)  out of %4s\n", $3, $5, $2; }'