Bash shell script to run Adobe CQ (Experience Manager) maintenance operations on Red Hat Enterprise Linux. Tested on RHEL 6.3 and 6.4

cq_maintenance.sh

#!/bin/bash

# Bash script to run CQ daily maintenance operations, excluding TarPM Optimization and Tar Index Merge

# Author : Jayan Kandathil
# Version : 0.4
# Last updated : May 24, 2013

# Instructions : Copy to CQ's /bin folder, make necessary changes, enable the execute bit and run

# Echo on (for debugging purposes)
# set -x verbose

# Host that CQ runs on
HOST=localhost

# TCP port CQ listens on
PORT=4502

# CQ Admin user ID
USER=admin

# CQ Admin user password
PASSWORD=admin

# CQ Home
CQ_HOME=/mnt/cq/crx-quickstart

# CQ Maintenance in progress file
MAINTENANCE_FILE=$CQ_HOME/logs/maintenance_in_progress.txt

# CQ Maintenance log file
LOG_FILE=$CQ_HOME/logs/cq_maintenance.log

# Source Folder where CQ is backed up (no trailing forward slash)
CQ_BACKUP_FOLDER=/mnt/cq/backup

# Don't change the file name backupInProgress.txt  CQ creates it automatically on Backup start, and deletes it when Backup finishes)
BACKUP_FILE=$CQ_BACKUP_FOLDER/backupInProgress.txt

# ------------------------------------------------
# Do not configure below this point
# ------------------------------------------------

# Log timestamp
date | tee -a $LOG_FILE

# Back off if the previous maintenance operation is still in progress
if [ -f $MAINTENANCE_FILE ];
  
	then
		echo $'\n'"Previous maintenance operation still in progress..., backing off till next time."$'\n' | tee -a $LOG_FILE

	else
	
	# Back off if CQ Backup is in progress
	if [ -f $BACKUP_FILE ];
		
		then
			echo $'\n'"Incremental CQ Backup in progress..., backing off till next time."$'\n' | tee -a $LOG_FILE
		
		else

			#Create an empty text file indicating maintenance in progress
			touch $MAINTENANCE_FILE | tee -a $LOG_FILE
			
			# Consistency Check
			echo "Starting JCR consistency check..."$'\n'
			START=$(date +%s)
			time curl -u $USER:$PASSWORD -X POST --data "rootNode=%2F&fixInconsistencies=true" http://$HOST:$PORT/system/console/jmx/com.adobe.granite%3Atype%3DRepository/op/consistencyCheck/java.lang.String%2Cjava.lang.Boolean | tee -a $LOG_FILE
			END=$(date +%s)
			DIFF=$(( $END - $START ))
			echo "Finished."$'\n'
			echo "Took $DIFF seconds"$'\n'

			# Traversal Check
			echo "Starting JCR traversal check..."$'\n'
			START=$(date +%s)
			time curl -u $USER:$PASSWORD -X POST --data "fixInconsistencies=true&logEach=false&rootNode=%2F" http://$HOST:$PORT/system/console/jmx/com.adobe.granite%3Atype%3DRepository/op/traversalCheck/java.lang.String%2Cjava.lang.Boolean%2Cjava.lang.Boolean | tee -a $LOG_FILE
			END=$(date +%s)
			DIFF=$(( $END - $START ))
			echo "Finished."$'\n'
			echo "Took $DIFF seconds"$'\n'

			# Data Store Garbage Collection (only pre-v5.6.0)
			# in v5.6.0 and newer, use the OSGi config "Repository Garbage Collection Scheduler"
			echo $'\n'"Starting Data Store garbage collection..."$'\n'
			START=$(date +%s)
			time curl -u $USER:$PASSWORD -X POST --data "delete=true&delay=1" http://$HOST:$PORT/system/console/jmx/com.adobe.granite%3Atype%3DRepository/op/runDataStoreGarbageCollection/java.lang.Boolean | tee -a $LOG_FILE
			END=$(date +%s)
			DIFF=$(( $END - $START ))
			echo "Finished."$'\n'
			echo "Took $DIFF seconds"$'\n'

			# Remove file which indicates that maintenance is in progress
			rm $MAINTENANCE_FILE | tee -a $LOG_FILE
	fi
	
fi

# Log timestamp
date | tee -a $LOG_FILE

echo $'\n'

What is the use of running consistency check and traversal check before the actual operation?And maintaining logs for these 2 process which seem irrelevant when it comes to running the datastor garbage collector.