Shell Programming and Scripting

#!/bin/sh
#
# The following script will look for the PID of SickBeard and output the result

PROGRAM="SickBeard"
PROGRAM1="/volume1/@appstore/sickbeard/SickBeard.py"
LOG_DIR="/volume1/@appstore/"
LOG_FILE="sb_monitor.log"
APPCHK=$(ps | grep $PROGRAM1 | grep -v "grep $PROGRAM1" | wc -l)
SUPPORTSTAFF="me@me.com"

# The 'if' statement below checks to see if the process is running
# with the 'ps' command.  If the value is returned as a '0' then
# an email will be sent and the process will be safely restarted.

echo "Number of processes running =$APPCHK"

if [ $APPCHK = '0' ];

then

# Write datestamp & output to log file
echo "$(date +%c) $*" >> $LOG_DIR/$LOG_FILE
echo "$PROGRAM is not running">> $LOG_DIR/$LOG_FILE

# Send an email to advise SickBeard was down
echo "$PROGRAM is not running" | /opt/bin/nail -s "$LOG_FILE" -a $LOG_DIR/$LOG_FILE $SUPPORTSTAFF

# Start SickBeard
echo "$(date +%c) $*"
echo "Starting $PROGRAM"
/var/packages/sab2/target/utils/bin/python /volume1/@appstore/sickbeard/SickBeard.py --quiet &

else

# When Sickbeard is running write to log file to say all is fine
echo "$(date +%c) $*" >> $LOG_DIR/$LOG_FILE
echo "$PROGRAM is running">> $LOG_FILE
echo "No action taken...">> $LOG_FILE
echo "$PROGRAM is running"
echo "No action taken..."

fi

exit

#minute        hour        mday        month        wday        who        command
0        0        *        *        *        root        /usr/sbin/ntpdate -b pool.ntp.org
*/1        *        *        *        *        root        /volume1/@appstore/sickbeard_Monitor.sh >> /volume1/@appstore/log.txt 2>&1

/volume1 # ps | grep sickbeard
 1561 root      2928 S    grep sickbeard
10514 root      188m S    /var/packages/sab2/target/utils/bin/python /volume1/@appstore/sickbeard/SickBeard.py --quiet
/volume1 #

grep $PROGRAM1
with
grep "${PROGRAM1}"