stow/bin/.bin/netcheck.sh

   1 #!/bin/bash
   2
   3 upOrDown=3 # 1 = down, 2 up , 3 unknown
   4 host="1.1.1.1"
   5
   6 if [ -n "$1" ]; then
   7     host=$1
   8 fi
   9
  10 SLEEP_SECS=1
  11 while true
  12 do
  13
  14     if ping -w 2 -c 1 "$host" > /dev/null 2>&1;
  15     then
  16         if [ $upOrDown -ne 2 ];then
  17             upOrDown=2
  18             echo -e "$(date)\t$host\tok"
  19         fi
  20     else
  21         if [ $upOrDown -ne 1 ];then
  22             upOrDown=1
  23             echo -e "$(date)\t$host\tNOK"
  24         fi
  25     fi
  26     sleep $SLEEP_SECS
  27 done