Check Edis RPi Colocation Range for online/offline RPi's (if FW blocks ICMP => offline)

edis_pi_online_stats.sh

#!/usr/bin/env bash

# q&d; WTFPL;

count_off=0;
count_onl=0;

for n in {1..254}; do
  ip="151.236.12.${n}";
  ping -c1 -t1 ${ip} > /dev/null 2>&1
  if [ $? -eq 0 ]; then
    $[count_onl+=1] 2> /dev/null;
    echo -e "${ip}:\tONLINE";
  else
    $[count_off+=1] 2> /dev/null;
    echo -e "${ip}:\tOFFLINE";
  fi
done

echo "====== STATS ======"
echo "ONLINE: ${count_onl}"
echo "OFFLINE: ${count_off}"
echo "==================="

output.md

2013/12/17:

• ONLINE: 71
• OFFLINE: 183

2013/12/18:

• ONLINE: 85
• OFFLINE: 169