Cron + watchdog einrichten, 7020HD und Newnigma

#!/bin/sh
# global variables
MAXLOGLINES=100
LOGFILE=/tmp/oscam.check


### get time
# function to get the correct system time in an indivudual format when called - output: yyyy-mm-dd@hh:mm:ss
now () {
date +%Y-%m-%d@%H:%M:%S
}


### logfile check
# function: if number of lines in logfile >= $MAXLOGLINES then move logfile
logfile_check () {
if [ $(wc -l $LOGFILE | awk '{print $1}') -ge $MAXLOGLINES ] ; then
  mv -f $LOGFILE $LOGFILE.old
  echo "$(now) - last $MAXLOGLINES lines of $LOGFILE moved to $LOGFILE.old" > $LOGFILE
fi
}

# if logfile exists, check number of lines with above function - if not: skip
[ -e $LOGFILE ] && logfile_check


### oscam check
# if result of "ps aux ...." = 0, oscam ist NOT running, else running
if [ $(ps aux | grep -v grep | grep -c "/usr/bin/oscam") = 0 ] ; then
  echo "$(now) - oscam not running - restarting oscam" >> $LOGFILE
  # alternative: write status in both files
  # echo "$(now) - oscam not running - restarting oscam" >> /tmp/oscam.restarts
  # echo "$(now) - oscam not running - restarting oscam" > /tmp/oscam.status
  # /usr/bin/oscam &
  # may be better, because all oscam /tmp files created on start from NN2 start/stop script will cleaned/deleted:
  /usr/script/oscam.emu restart
  # or 'camdctrl restart' if oscam only is used
else
  echo "$(now) - oscam is running ">> $LOGFILE
  # alternative
  # echo "$(now) - oscam is running " >  /tmp/oscam.status
fi

exit