Auto reboot pfSense if Internet is down

ping_check.sh

#!/bin/sh
#
# /usr/local/bin/ping_check.sh
#
# First sleep for 3 mins so that we don't run this code if box has only just booted and PPPoE not up yet.
/bin/sleep 180


test_http() {
  url=${1:-http://captive.apple.com}
  seconds=${2:-300}
  echo "Testing $url for up to $seconds seconds..."

  curl --silent $url > /dev/null && echo "OK" && return 0
  sleep $seconds
  (curl --silent $url > /dev/null && echo "OK") || (echo "FAIL" && return 1)
}

test_internet() {
  seconds=${1:-60}
  test_http http://captive.apple.com $seconds || test_http http://www.neverssl.com $seconds
}

flip_wan() {
  # I have 2 WAN adapters: em0 and em2
  /sbin/ifconfig em0 down
  /sbin/ifconfig em2 down
  /bin/sleep 10
  /sbin/ifconfig em0 up
  /sbin/ifconfig em2 up
}

reboot_box() {
  /etc/rc.stop_packages
  /etc/rc.reboot
}


if [[ test_internet -ne 0 ]]; then
  # network down
  # Try flipping WAN NIC in the hope that will trigger BT modem to reconnect properly ...
  echo "Network is down. Flipping WAN NIC..."
  flip_wan && /bin/sleep 30

  if [[ test_internet -ne 0 ]]; then
    # network STILL down
    echo "Network still down. Rebooting..." && reboot_box
  else
    echo "Flipping WAN restored Internet connectivity."
  fi
else
  echo "Internet is up."
fi

Im adding line:
set -x #echo on

---

[2.5.1-RELEASE]/: /usr/local/bin/ping_check.sh
+ '[[' test_internet -ne 0 ]]
/usr/local/bin/ping_check.sh: [[: not found
+ echo 'Internet is up.'
Internet is up.

Script dont working.

and:

[2.5.1-RELEASE]/: test_internet () {seconds=${1:-60} test_http http://captive.apple.com $seconds || test_http http:/                        /www.neverssl.com $seconds}
Bad : modifier in $ '-'.

And that dont work too.....
Can who edit this ?

# Testing uptime to run script only xx seconds after boot

# Current time
curtime=$(date +%s)

# Bootime in seconds
uptime=$(sysctl kern.boottime | awk -F'sec = ' '{print $2}' | awk -F',' '{print $1}')

# Uptime in seconds
uptime=$(($curtime - $uptime))

# If boot is longer than 120 seconds ago...
if [ $uptime -gt 120 ]; then

# A message to the console (I like feedback)
echo "Testing Connection at" `date +%Y-%m-%d.%H:%M:%S` "uptime:" $uptime "seconds" >> file.txt
wall file.txt
rm file.txt

# Try 1 or 2 minutes worth of very short pings to googles DNS servers.
# Quit immediately if we get a single frame back.
# If neither server responds at all then reboot the firewall.

counting=$(ping -o -s 0 -c 10 8.8.8.8 | grep 'received' | awk -F',' '{ print $2 }' | awk '{ print $1 }' )

if [ $counting -eq 0 ]; then

counting=$(ping -o -s 0 -c 10 8.8.4.4 | grep 'received' | awk -F',' '{ print $2 }' | awk '{ print $1 }' )

if [ $counting -eq 0 ]; then

# trying to just restart NIC

ifconfig hn0 down
ifconfig hn0 up

counting=$(ping -o -s 0 -c 10 8.8.8.8 | grep 'received' | awk -F',' '{ print $2 }' | awk '{ print $1 }' )

if [ $counting -eq 0 ]; then

# network down
# Save RRD data

/etc/rc.backup_rrd.sh
reboot

fi
fi
fi
fi