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.9 proc_watch_timed.ksh shell script listing.(continued) Process Monitoring 235# Put anything that you want to execute WHEN, or AS, the# monitored process STARTS in this function: # No-OP - Needed as a place holder for an empty function# Comment Out the Above colon, :STARTUP_RC=$?return $STARTUP_RC}####################################################post_event_script (){# Put anything that you want to execute AFTER the# monitored process ENDS in this function: # No-OP - Need as a place holder for an empty function# Comment Out the Above colon, :POST_RC=$?return $POST_RC}##################################################### This function is used to test character stringstest_string (){if (( $# != 1 ))thenecho ERRORreturnfiC_STRING=$1# Test the character string for its compositioncase $C_STRING in+([0-9])) echo POS_INT # Integer >= 0;;+([-0-9])) echo NEG_INT # Integer $TTYecho STARTUP EVENT: Executing Startup Event Script. \>> $LOGFILEstartup_event_script # USER DEFINED FUNCTION!!!RC=$? # Check the Return Code!!if (( RC == 0 ))thenecho SUCCESS: Startup Event Script Completed RC -${RC} > $TTYecho SUCCESS: Startup Event Script Completed RC -${RC} >> $LOGFILEelseecho FAILURE: Startup Event Script FAILED RC -${RC} > $TTYecho FAILURE: Startup Event Script FAILED RC -${RC} >> $LOGFILEfifiinteger PROC_COUNT= -1 # Reset the Countersinteger LAST_COUNT= -1# Loop until the process(es) end(s)until (( PROC_COUNT == 0 ))do# This function is a Co-Process.$BREAK checks to see if# Program Interrupt has taken place.If so BREAK will# be Y and we exit both the loop and function.read BREAKListing 8.9 proc_watch_timed.ksh shell script listing.(continued) Process Monitoring 237if [[ $BREAK = Y ]]thenreturn 3fiPROC_COUNT=$(ps -ef | grep -v grep $PROCESS \| grep -v $SCRIPT_NAME \| grep $PROCESS | wc -l) >/dev/null 2>&1if (( LAST_COUNT > 0 && LAST_COUNT != PROC_COUNT ))then# The Process Count has Changed.TIMESTAMP=$(date +%D@%T)# Get a list of the PID of all of the processesPID_LIST=$(ps -ef | grep -v grep $PROCESS \| grep -v $SCRIPT_NAME \| grep $PROCESS | awk {print $2} )echo PROCESS COUNT: $PROC_COUNT $PROCESS\Processes Running ==> $TIMESTAMP >> $LOGFILE &echo PROCESS COUNT: $PROC_COUNT $PROCESS\Processes Running ==> $TIMESTAMP > $TTYecho ACTIVE PIDS: $PID_LIST >> $LOGFILE &echo ACTIVE PIDS: $PID_LIST > $TTYfiLAST_COUNT=$PROC_COUNTsleep $INTERVAL # Needed to reduce CPU load!doneRUN= N # Turn the RUN Flag OffTIMESTAMP=$(date +%D@%T)echo ENDING PROCESS: $PROCESS END time ==>\$TIMESTAMP >> $LOGFILE &echo ENDING PROCESS: $PROCESS END time ==>\$TIMESTAMP > $TTY# This will run the post_event_script, which is a functionif [[ $RUN_POST_EVENT = Y ]]thenecho POST EVENT: Executing Post Event Script. \> $TTYecho POST EVENT: Executing Post Event Script. \>> $LOGFILE &post_event_script # USER DEFINED FUNCTION!!!integer RC=$?if (( RC == 0 ))Listing 8.9 proc_watch_timed.ksh shell script listing.(continues) 238 Chapter 8thenecho SUCCESS: Post Event Script Completed RC -${RC} > $TTYecho SUCCESS: Post Event Script Completed RC -${RC} >> $LOGFILEelseecho FAILURE: Post Event Script FAILED RC - ${RC} \> $TTYecho FAILURE: Post Event Script FAILED RC - ${RC} \>> $LOGFILEfifi;; N )# This will run the pre_event_script, which is a functionif [[ $RUN_PRE_EVENT = Y ]]thenecho PRE EVENT: Executing Pre Event Script. > $TTYecho PRE EVENT: Executing Pre Event Script. >> $LOGFILEpre_event_script # USER DEFINED FUNCTION!!!RC=$? # Check the Return Code!!!if (( RC == 0 ))thenecho SUCCESS: Pre Event Script Completed RC - ${RC} \> $TTYecho SUCCESS: Pre Event Script Completed RC - ${RC} \>> $LOGFILEelseecho FAILURE: Pre Event Script FAILED RC - ${RC} \> $TTYecho FAILURE: Pre Event Script FAILED RC - ${RC} \>> $LOGFILEfifiecho WAITING: Waiting for $PROCESS tostartup.Monitoring. integer PROC_COUNT= -1 # Initialize to a fake value# Loop until at least one process startsuntil (( PROC_COUNT > 0 ))Listing 8.9 proc_watch_timed.ksh shell script listing.(continued) Process Monitoring 239do# This is a Co-Process.This checks to see if a Program# Interrupt has taken place
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