diff --git a/dev/n_obackup.sh b/dev/n_obackup.sh
index 87f4401..9bd28f7 100644
--- a/dev/n_obackup.sh
+++ b/dev/n_obackup.sh
@@ -8,7 +8,7 @@ AUTHOR="(C) 2013-2019 by Orsiris de Jong"
 CONTACT="http://www.netpower.fr/obackup - ozy@netpower.fr"
 PROGRAM_VERSION=2.1-RC1
 PROGRAM_BUILD=2018110602
-IS_STABLE=yes
+IS_STABLE=true
 
 #### Execution order					#__WITH_PARANOIA_DEBUG
 # GetLocalOS						#__WITH_PARANOIA_DEBUG
@@ -79,14 +79,14 @@ function TrapQuit {
         fi
 
 	if [ $ERROR_ALERT == true ]; then
-		if [ "$RUN_AFTER_CMD_ON_ERROR" == "yes" ]; then
+		if [ "$RUN_AFTER_CMD_ON_ERROR" == true ]; then
 			RunAfterHook
 		fi
 		Logger "$PROGRAM finished with errors." "ERROR"
 		SendAlert
 		exitcode=1
 	elif [ $WARN_ALERT == true ]; then
-		if [ "$RUN_AFTER_CMD_ON_ERROR" == "yes" ]; then
+		if [ "$RUN_AFTER_CMD_ON_ERROR" == true ]; then
 			RunAfterHook
 		fi
 		Logger "$PROGRAM finished with warnings." "WARN"
@@ -110,7 +110,7 @@ function TrapQuit {
 function CheckEnvironment {
 	__CheckArguments 0 $# "$@"    #__WITH_PARANOIA_DEBUG
 
-	if [ "$REMOTE_OPERATION" == "yes" ]; then
+	if [ "$REMOTE_OPERATION" == true ]; then
 		if ! type ssh > /dev/null 2>&1 ; then
 			Logger "ssh not present. Cannot start backup." "CRITICAL"
 			exit 1
@@ -121,7 +121,7 @@ function CheckEnvironment {
                         exit 1
                 fi
 	else
-		if [ "$SQL_BACKUP" != "no" ]; then
+		if [ "$SQL_BACKUP" != false ]; then
 			if ! type mysqldump > /dev/null 2>&1 ; then
 				Logger "mysqldump not present. Cannot backup SQL." "CRITICAL"
 				CAN_BACKUP_SQL=false
@@ -133,14 +133,14 @@ function CheckEnvironment {
 		fi
 	fi
 
-	if [ "$FILE_BACKUP" != "no" ]; then
+	if [ "$FILE_BACKUP" != false ]; then
 		if ! type rsync > /dev/null 2>&1 ; then
 			Logger "rsync not present. Cannot backup files." "CRITICAL"
 			CAN_BACKUP_FILES=false
 		fi
 	fi
 
-	if [ "$ENCRYPTION" == "yes" ]; then
+	if [ "$ENCRYPTION" == true ]; then
 		CheckCryptEnvironnment
 	fi
 
@@ -167,15 +167,20 @@ function CheckCryptEnvironnment {
 function CheckCurrentConfig {
 	__CheckArguments 0 $# "$@"    #__WITH_PARANOIA_DEBUG
 
+	local test
+	local booleans
+	local num_vars
+
 	if [ "$INSTANCE_ID" == "" ]; then
 		Logger "No INSTANCE_ID defined in config file." "CRITICAL"
 		exit 1
 	fi
 
-	# Check all variables that should contain "yes" or "no"
-	declare -a yes_no_vars=(SQL_BACKUP FILE_BACKUP ENCRYPTION CREATE_DIRS KEEP_ABSOLUTE_PATHS GET_BACKUP_SIZE SSH_COMPRESSION SSH_IGNORE_KNOWN_HOSTS REMOTE_HOST_PING SUDO_EXEC DATABASES_ALL PRESERVE_PERMISSIONS PRESERVE_OWNER PRESERVE_GROUP PRESERVE_EXECUTABILITY PRESERVE_ACL PRESERVE_XATTR COPY_SYMLINKS KEEP_DIRLINKS PRESERVE_HARDLINKS RSYNC_COMPRESS PARTIAL DELETE_VANISHED_FILES DELTA_COPIES ROTATE_SQL_BACKUPS ROTATE_FILE_BACKUPS STOP_ON_CMD_ERROR RUN_AFTER_CMD_ON_ERROR)
-	for i in "${yes_no_vars[@]}"; do
-		test="if [ \"\$$i\" != \"yes\" ] && [ \"\$$i\" != \"no\" ]; then Logger \"Bogus $i value [\$$i] defined in config file. Correct your config file or update it with the update script if using and old version.\" \"CRITICAL\"; exit 1; fi"
+	# v2 config will use true / false instead of yes / no
+        # Check all variables that should contain "yes" or "no", true or false
+	declare -a booleans=(SQL_BACKUP FILE_BACKUP ENCRYPTION CREATE_DIRS KEEP_ABSOLUTE_PATHS GET_BACKUP_SIZE SSH_COMPRESSION SSH_IGNORE_KNOWN_HOSTS REMOTE_HOST_PING SUDO_EXEC DATABASES_ALL PRESERVE_PERMISSIONS PRESERVE_OWNER PRESERVE_GROUP PRESERVE_EXECUTABILITY PRESERVE_ACL PRESERVE_XATTR COPY_SYMLINKS KEEP_DIRLINKS PRESERVE_HARDLINKS RSYNC_COMPRESS PARTIAL DELETE_VANISHED_FILES DELTA_COPIES ROTATE_SQL_BACKUPS ROTATE_FILE_BACKUPS STOP_ON_CMD_ERROR RUN_AFTER_CMD_ON_ERROR)
+	for i in "${booleans[@]}"; do
+		test="if [ \"\$$i\" != \"yes\" ] && [ \"\$$i\" != \"no\" ] && [ \"\$$i\" != true ] && [ \"\$$i\" != false ]; then Logger \"Bogus $i value [\$$i] defined in config file. Correct your config file or update it with the update script if using and old version.\" \"CRITICAL\"; exit 1; fi"
 		eval "$test"
 	done
 
@@ -191,14 +196,14 @@ function CheckCurrentConfig {
 		eval "$test"
 	done
 
-	if [ "$FILE_BACKUP" == "yes" ]; then
+	if [ "$FILE_BACKUP" == true ]; then
 		if [ "$DIRECTORY_LIST" == "" ] && [ "$RECURSIVE_DIRECTORY_LIST" == "" ]; then
 			Logger "No directories specified in config file, no files to backup." "ERROR"
 			CAN_BACKUP_FILES=false
 		fi
 	fi
 
-	if [ "$REMOTE_OPERATION" == "yes" ] && [ ! -f "$SSH_RSA_PRIVATE_KEY" ]; then
+	if [ "$REMOTE_OPERATION" == true ] && [ ! -f "$SSH_RSA_PRIVATE_KEY" ]; then
 		Logger "Cannot find rsa private key [$SSH_RSA_PRIVATE_KEY]. Cannot connect to remote system." "CRITICAL"
 		exit 1
 	fi
@@ -209,17 +214,17 @@ function CheckCurrentConfig {
 	#	exit 1
 	#fi
 
-	if [ "$SQL_BACKUP" == "yes" ] && [ "$SQL_STORAGE" == "" ]; then
+	if [ "$SQL_BACKUP" == true ] && [ "$SQL_STORAGE" == "" ]; then
 		Logger "SQL_STORAGE not defined." "CRITICAL"
 		exit 1
 	fi
 
-	if [ "$FILE_BACKUP" == "yes" ] && [ "$FILE_STORAGE" == "" ]; then
+	if [ "$FILE_BACKUP" == true ] && [ "$FILE_STORAGE" == "" ]; then
 		Logger "FILE_STORAGE not defined." "CRITICAL"
 		exit 1
 	fi
 
-	if [ "$ENCRYPTION" == "yes" ]; then
+	if [ "$ENCRYPTION" == true ]; then
 		if [ "$CRYPT_STORAGE" == "" ]; then
 			Logger "CRYPT_STORAGE not defined." "CRITICAL"
 			exit 1
@@ -230,12 +235,25 @@ function CheckCurrentConfig {
 		fi
 	fi
 
-	if [ "$REMOTE_OPERATION" == "yes" ] && ([ ! -f "$SSH_RSA_PRIVATE_KEY" ] && [ ! -f "$SSH_PASSWORD_FILE" ]); then
+	if [ "$REMOTE_OPERATION" == true ] && ([ ! -f "$SSH_RSA_PRIVATE_KEY" ] && [ ! -f "$SSH_PASSWORD_FILE" ]); then
                 Logger "Cannot find rsa private key [$SSH_RSA_PRIVATE_KEY] nor password file [$SSH_PASSWORD_FILE]. No authentication method provided." "CRITICAL"
                 exit 1
         fi
 }
 
+# Change all booleans with "yes" or "no" to true / false for v2 config syntax compatibility
+function UpdateBooleans {
+        local update
+        local booleans
+
+	declare -a booleans=(SQL_BACKUP FILE_BACKUP ENCRYPTION CREATE_DIRS KEEP_ABSOLUTE_PATHS GET_BACKUP_SIZE SSH_COMPRESSION SSH_IGNORE_KNOWN_HOSTS REMOTE_HOST_PING SUDO_EXEC DATABASES_ALL PRESERVE_PERMISSIONS PRESERVE_OWNER PRESERVE_GROUP PRESERVE_EXECUTABILITY PRESERVE_ACL PRESERVE_XATTR COPY_SYMLINKS KEEP_DIRLINKS PRESERVE_HARDLINKS RSYNC_COMPRESS PARTIAL DELETE_VANISHED_FILES DELTA_COPIES ROTATE_SQL_BACKUPS ROTATE_FILE_BACKUPS STOP_ON_CMD_ERROR RUN_AFTER_CMD_ON_ERROR)
+
+        for i in "${booleans[@]}"; do
+                update="if [ \"\$$i\" == \"yes\" ]; then $i=true; fi; if [ \"\$$i\" == \"no\" ]; then $i=false; fi"
+                eval "$update"
+        done
+}
+
 function CheckRunningInstances {
 	__CheckArguments 0 $# "$@"	#__WITH_PARANOIA_DEBUG
 
@@ -337,7 +355,7 @@ function ListDatabases {
 		while read -r line; do
 			while read -r name size; do dbName=$name; dbSize=$size; done <<< "$line"
 
-			if [ "$DATABASES_ALL" == "yes" ]; then
+			if [ "$DATABASES_ALL" == true ]; then
 				dbBackup=true
 				IFS=$PATH_SEPARATOR_CHAR read -r -a dbArray <<< "$DATABASES_ALL_EXCLUDE_LIST"
 				for j in "${dbArray[@]}"; do
@@ -659,11 +677,11 @@ function GetDirectoriesSize {
         Logger "Getting files size" "NOTICE"
 
 	if [ "$BACKUP_TYPE" == "local" ] || [ "$BACKUP_TYPE" == "push" ]; then
-		if [ "$FILE_BACKUP" != "no" ]; then
+		if [ "$FILE_BACKUP" != false ]; then
 			_GetDirectoriesSizeLocal "$FILE_SIZE_LIST"
 		fi
 	elif [ "$BACKUP_TYPE" == "pull" ]; then
-		if [ "$FILE_BACKUP" != "no" ]; then
+		if [ "$FILE_BACKUP" != false ]; then
 			_GetDirectoriesSizeRemote "$FILE_SIZE_LIST"
 		fi
 	fi
@@ -731,38 +749,38 @@ function CreateStorageDirectories {
         __CheckArguments 0 $# "$@"    #__WITH_PARANOIA_DEBUG
 
 	if [ "$BACKUP_TYPE" == "local" ] || [ "$BACKUP_TYPE" == "pull" ]; then
-		if [ "$SQL_BACKUP" != "no" ]; then
+		if [ "$SQL_BACKUP" != false ]; then
 			_CreateDirectoryLocal "$SQL_STORAGE"
 			if [ $? -ne 0 ]; then
 				CAN_BACKUP_SQL=false
 			fi
 		fi
-		if [ "$FILE_BACKUP" != "no" ]; then
+		if [ "$FILE_BACKUP" != false ]; then
 			_CreateDirectoryLocal "$FILE_STORAGE"
 			if [ $? -ne 0 ]; then
 				CAN_BACKUP_FILES=false
 			fi
 		fi
-		if [ "$ENCRYPTION" == "yes" ]; then
+		if [ "$ENCRYPTION" == true ]; then
 			_CreateDirectoryLocal "$CRYPT_STORAGE"
 			if [ $? -ne 0 ]; then
 				CAN_BACKUP_FILES=false
 			fi
 		fi
 	elif [ "$BACKUP_TYPE" == "push" ]; then
-		if [ "$SQL_BACKUP" != "no" ]; then
+		if [ "$SQL_BACKUP" != false ]; then
 			_CreateDirectoryRemote "$SQL_STORAGE"
 			if [ $? -ne 0 ]; then
 				CAN_BACKUP_SQL=false
 			fi
 		fi
-		if [ "$FILE_BACKUP" != "no" ]; then
+		if [ "$FILE_BACKUP" != false ]; then
 			_CreateDirectoryRemote "$FILE_STORAGE"
 			if [ $? -ne 0 ]; then
 				CAN_BACKUP_FILES=false
 			fi
 		fi
-		if [ "$ENCRYPTION" == "yes" ]; then
+		if [ "$ENCRYPTION" == true ]; then
 			_CreateDirectoryLocal "$CRYPT_STORAGE"
 			if [ $? -ne 0 ]; then
 				CAN_BACKUP_FILES=false
@@ -866,7 +884,7 @@ function CheckDiskSpace {
         __CheckArguments 0 $# "$@"    #__WITH_PARANOIA_DEBUG
 
 	if [ "$BACKUP_TYPE" == "local" ] || [ "$BACKUP_TYPE" == "pull" ]; then
-		if [ "$SQL_BACKUP" != "no" ]; then
+		if [ "$SQL_BACKUP" != false ]; then
 			GetDiskSpaceLocal "$SQL_STORAGE"
 			if [ $? -ne 0 ]; then
 				SQL_DISK_SPACE=0
@@ -876,7 +894,7 @@ function CheckDiskSpace {
 				SQL_DRIVE=$DRIVE
 			fi
 		fi
-		if [ "$FILE_BACKUP" != "no" ]; then
+		if [ "$FILE_BACKUP" != false ]; then
 			GetDiskSpaceLocal "$FILE_STORAGE"
 			if [ $? -ne 0 ]; then
 				FILE_DISK_SPACE=0
@@ -886,7 +904,7 @@ function CheckDiskSpace {
 				FILE_DRIVE=$DRIVE
 			fi
 		fi
-		if [ "$ENCRYPTION" != "no" ]; then
+		if [ "$ENCRYPTION" != false ]; then
 			GetDiskSpaceLocal "$CRYPT_STORAGE"
 			if [ $? -ne 0 ]; then
 				CRYPT_DISK_SPACE=0
@@ -898,7 +916,7 @@ function CheckDiskSpace {
 			fi
 		fi
 	elif [ "$BACKUP_TYPE" == "push" ]; then
-		if [ "$SQL_BACKUP" != "no" ]; then
+		if [ "$SQL_BACKUP" != false ]; then
 			GetDiskSpaceRemote "$SQL_STORAGE"
 			if [ $? -ne 0 ]; then
 				SQL_DISK_SPACE=0
@@ -907,7 +925,7 @@ function CheckDiskSpace {
 				SQL_DRIVE=$DRIVE
 			fi
 		fi
-		if [ "$FILE_BACKUP" != "no" ]; then
+		if [ "$FILE_BACKUP" != false ]; then
 			GetDiskSpaceRemote "$FILE_STORAGE"
 			if [ $? -ne 0 ]; then
 				FILE_DISK_SPACE=0
@@ -916,7 +934,7 @@ function CheckDiskSpace {
 				FILE_DRIVE=$DRIVE
 			fi
 		fi
-		if [ "$ENCRYPTION" != "no" ]; then
+		if [ "$ENCRYPTION" != false ]; then
 			GetDiskSpaceLocal "$CRYPT_STORAGE"
 			if [ $? -ne 0 ]; then
 				CRYPT_DISK_SPACE=0
@@ -937,7 +955,7 @@ function CheckDiskSpace {
 		TOTAL_FILES_SIZE=-1
 	fi
 
-	if [ "$SQL_BACKUP" != "no" ] && [ $CAN_BACKUP_SQL == true ]; then
+	if [ "$SQL_BACKUP" != false ] && [ $CAN_BACKUP_SQL == true ]; then
 		if [ $SQL_DISK_SPACE -eq 0 ]; then
 			Logger "Storage space in [$SQL_STORAGE] reported to be 0Ko." "WARN"
 		fi
@@ -950,7 +968,7 @@ function CheckDiskSpace {
 		Logger "SQL storage Space: $SQL_DISK_SPACE Ko - Databases size: $TOTAL_DATABASES_SIZE Ko" "NOTICE"
 	fi
 
-	if [ "$FILE_BACKUP" != "no" ] && [ $CAN_BACKUP_FILES == true ]; then
+	if [ "$FILE_BACKUP" != false ] && [ $CAN_BACKUP_FILES == true ]; then
 		if [ $FILE_DISK_SPACE -eq 0 ]; then
 			Logger "Storage space in [$FILE_STORAGE] reported to be 0 Ko." "WARN"
 		fi
@@ -963,8 +981,8 @@ function CheckDiskSpace {
 		Logger "File storage space: $FILE_DISK_SPACE Ko - Files size: $TOTAL_FILES_SIZE Ko" "NOTICE"
 	fi
 
-	if [ "$ENCRYPTION" == "yes" ]; then
-		if [ "$SQL_BACKUP" != "no" ]; then
+	if [ "$ENCRYPTION" == true ]; then
+		if [ "$SQL_BACKUP" != false ]; then
 			if [ "$SQL_DRIVE" == "$CRYPT_DRIVE" ]; then
 				if [ $((SQL_DISK_SPACE/2)) -lt $((TOTAL_DATABASES_SIZE)) ]; then
 					Logger "Disk space in [$SQL_STORAGE] and [$CRYPT_STORAGE] may be insufficient to backup SQL ($SQL_DISK_SPACE Ko available in $SQL_DRIVE) (non compressed databases calculation + crypt storage space)." "WARN"
@@ -976,7 +994,7 @@ function CheckDiskSpace {
 			fi
 		fi
 
-		if [ "$FILE_BACKUP" != "no" ]; then
+		if [ "$FILE_BACKUP" != false ]; then
 			if [ "$FILE_DRIVE" == "$CRYPT_DRIVE" ]; then
 				if [ $((FILE_DISK_SPACE/2)) -lt $((TOTAL_FILES_SIZE)) ]; then
 					Logger "Disk space in [$FILE_STORAGE] and [$CRYPT_STORAGE] may be insufficient to encrypt Sfiles ($FILE_DISK_SPACE Ko available in $FILE_DRIVE)." "WARN"
@@ -991,7 +1009,7 @@ function CheckDiskSpace {
 		Logger "Crypt storage space: $CRYPT_DISK_SPACE Ko" "NOTICE"
 	fi
 
-	if [ $BACKUP_SIZE_MINIMUM -gt $((TOTAL_DATABASES_SIZE+TOTAL_FILES_SIZE)) ] && [ "$GET_BACKUP_SIZE" != "no" ]; then
+	if [ $BACKUP_SIZE_MINIMUM -gt $((TOTAL_DATABASES_SIZE+TOTAL_FILES_SIZE)) ] && [ "$GET_BACKUP_SIZE" != false ]; then
 		Logger "Backup size is smaller than expected." "WARN"
 	fi
 }
@@ -1152,7 +1170,7 @@ function BackupDatabase {
 		mysqlOptions="$MYSQLDUMP_OPTIONS"
 	fi
 
-	if [ "$ENCRYPTION" == "yes" ]; then
+	if [ "$ENCRYPTION" == true ]; then
 		encrypt=true
 		Logger "Backing up encrypted database [$database]." "NOTICE"
 	else
@@ -1461,7 +1479,7 @@ function FilesBackup {
 	for backupTask in "${backupTasks[@]}"; do
 	# Backup directories from simple list
 
-		if [ "$KEEP_ABSOLUTE_PATHS" != "no" ]; then
+		if [ "$KEEP_ABSOLUTE_PATHS" != false ]; then
 			# Fix for backup of '/'
 			if [ "${backupTask#/}/" == "/" ]; then
 				destinationDir="$FILE_STORAGE/"
@@ -1475,14 +1493,14 @@ function FilesBackup {
 		fi
 
 		Logger "Beginning file backup of [$backupTask] to [$destinationDir] as $BACKUP_TYPE backup." "NOTICE"
-		if [ "$ENCRYPTION" == "yes" ] && ([ "$BACKUP_TYPE" == "local" ] || [ "$BACKUP_TYPE" == "push" ]); then
+		if [ "$ENCRYPTION" == true ] && ([ "$BACKUP_TYPE" == "local" ] || [ "$BACKUP_TYPE" == "push" ]); then
 			EncryptFiles "$backupTask" "$CRYPT_STORAGE" "$GPG_RECIPIENT" true true
 			if [ $? -eq 0 ]; then
 				Rsync "$CRYPT_STORAGE/$backupTask" "$destinationDir" true
 			else
 				Logger "backup failed." "ERROR"
 			fi
-		elif [ "$ENCRYPTION" == "yes" ] && [ "$BACKUP_TYPE" == "pull" ]; then
+		elif [ "$ENCRYPTION" == true ] && [ "$BACKUP_TYPE" == "pull" ]; then
 			Rsync "$backupTask" "$destinationDir" true
 			if [ $? -eq 0 ]; then
 				EncryptFiles "$encryptDir" "$CRYPT_STORAGE/$backupTask" "$GPG_RECIPIENT" true false
@@ -1497,7 +1515,7 @@ function FilesBackup {
 	for backupTask in "${backupTasks[@]}"; do
 	# Backup recursive directories without recursion
 
-		if [ "$KEEP_ABSOLUTE_PATHS" != "no" ]; then
+		if [ "$KEEP_ABSOLUTE_PATHS" != false ]; then
 			# Fix for backup of '/'
 			if [ "${backupTask#/}/" == "/" ]; then
 				destinationDir="$FILE_STORAGE/"
@@ -1511,14 +1529,14 @@ function FilesBackup {
 		fi
 
 		Logger "Beginning non recursive file backup of [$backupTask] to [$destinationDir] as $BACKUP_TYPE backup." "NOTICE"
-		if [ "$ENCRYPTION" == "yes" ] && ([ "$BACKUP_TYPE" == "local" ] || [ "$BACKUP_TYPE" == "push" ]); then
+		if [ "$ENCRYPTION" == true ] && ([ "$BACKUP_TYPE" == "local" ] || [ "$BACKUP_TYPE" == "push" ]); then
 			EncryptFiles "$backupTask" "$CRYPT_STORAGE" "$GPG_RECIPIENT" false true
 			if [ $? -eq 0 ]; then
 				Rsync "$CRYPT_STORAGE/$backupTask" "$destinationDir" false
 			else
 				Logger "backup failed." "ERROR"
 			fi
-		elif [ "$ENCRYPTION" == "yes" ] && [ "$BACKUP_TYPE" == "pull" ]; then
+		elif [ "$ENCRYPTION" == true ] && [ "$BACKUP_TYPE" == "pull" ]; then
 			Rsync "$backupTask" "$destinationDir" false
 			if [ $? -eq 0 ]; then
 				EncryptFiles "$encryptDir" "$CRYPT_STORAGE/$backupTask" "$GPG_RECIPIENT" false false
@@ -1533,7 +1551,7 @@ function FilesBackup {
 	for backupTask in "${backupTasks[@]}"; do
 	# Backup sub directories of recursive directories
 
-		if [ "$KEEP_ABSOLUTE_PATHS" != "no" ]; then
+		if [ "$KEEP_ABSOLUTE_PATHS" != false ]; then
 			# Fix for backup of '/'
 			if [ "${backupTask#/}/" == "/" ]; then
 				destinationDir="$FILE_STORAGE/"
@@ -1547,14 +1565,14 @@ function FilesBackup {
 		fi
 
 		Logger "Beginning recursive child file backup of [$backupTask] to [$destinationDir] as $BACKUP_TYPE backup." "NOTICE"
-		if [ "$ENCRYPTION" == "yes" ] && ([ "$BACKUP_TYPE" == "local" ] || [ "$BACKUP_TYPE" == "push" ]); then
+		if [ "$ENCRYPTION" == true ] && ([ "$BACKUP_TYPE" == "local" ] || [ "$BACKUP_TYPE" == "push" ]); then
 			EncryptFiles "$backupTask" "$CRYPT_STORAGE" "$GPG_RECIPIENT" true true
 			if [ $? -eq 0 ]; then
 				Rsync "$CRYPT_STORAGE/$backupTask" "$destinationDir" true
 			else
 				Logger "backup failed." "ERROR"
 			fi
-		elif [ "$ENCRYPTION" == "yes" ] && [ "$BACKUP_TYPE" == "pull" ]; then
+		elif [ "$ENCRYPTION" == true ] && [ "$BACKUP_TYPE" == "pull" ]; then
 			Rsync "$backupTask" "$destinationDir" true
 			if [ $? -eq 0 ]; then
 				EncryptFiles "$encryptDir" "$CRYPT_STORAGE/$backupTask" "$GPG_RECIPIENT" true false
@@ -1637,7 +1655,7 @@ function _RotateBackupsLocal {
 			fi
 
 		else
-		#elif [ "$REMOTE_OPERATION" == "yes" ]; then
+		#elif [ "$REMOTE_OPERATION" == true ]; then
 			cmd="cp -R \"$backup\" \"$backup.$PROGRAM.1\""
 			Logger "Launching command [$cmd]." "DEBUG"
 			eval "$cmd" &
@@ -1720,7 +1738,7 @@ function _RotateBackupsRemoteSSH {
 			fi
 
 		else
-		#elif [ "$REMOTE_OPERATION" == "yes" ]; then
+		#elif [ "$REMOTE_OPERATION" == true ]; then
 			cmd="cp -R \"$backup\" \"$backup.$PROGRAM.1\""
 			RemoteLogger "Launching command [$cmd]." "DEBUG"
 			eval "$cmd"
@@ -1782,7 +1800,7 @@ function Init {
 
 	## Test if target dir is a ssh uri, and if yes, break it down it its values
         if [ "${REMOTE_SYSTEM_URI:0:6}" == "ssh://" ] && [ "$BACKUP_TYPE" != "local" ]; then
-                REMOTE_OPERATION="yes"
+                REMOTE_OPERATION=true
 
                 # remove leadng 'ssh://'
                 uri=${REMOTE_SYSTEM_URI#ssh://*}
@@ -1819,7 +1837,7 @@ function Init {
 		RSYNC_TYPE_ARGS=$RSYNC_TYPE_ARGS" -i"
 	fi
 
-	if [ "$DELETE_VANISHED_FILES" == "yes" ]; then
+	if [ "$DELETE_VANISHED_FILES" == true ]; then
 		RSYNC_TYPE_ARGS=$RSYNC_TYPE_ARGS" --delete"
 	fi
 
@@ -1834,12 +1852,12 @@ function Init {
 function Main {
 	__CheckArguments 0 $# "$@"    #__WITH_PARANOIA_DEBUG
 
-	if [ "$SQL_BACKUP" != "no" ] && [ $CAN_BACKUP_SQL == true ]; then
+	if [ "$SQL_BACKUP" != false ] && [ $CAN_BACKUP_SQL == true ]; then
 		ListDatabases
 	fi
-	if [ "$FILE_BACKUP" != "no" ] && [ $CAN_BACKUP_FILES == true ]; then
+	if [ "$FILE_BACKUP" != false ] && [ $CAN_BACKUP_FILES == true ]; then
 		ListRecursiveBackupDirectories
-		if [ "$GET_BACKUP_SIZE" != "no" ]; then
+		if [ "$GET_BACKUP_SIZE" != false ]; then
 			GetDirectoriesSize
 		else
 			TOTAL_FILES_SIZE=-1
@@ -1853,21 +1871,21 @@ function Main {
 	SSH_PASSWORD_FILE="${SSH_PASSWORD_FILE/#\~/$HOME}"
 	ENCRYPT_PUBKEY="${ENCRYPT_PUBKEY/#\~/$HOME}"
 
-	if [ "$CREATE_DIRS" != "no" ]; then
+	if [ "$CREATE_DIRS" != false ]; then
 		CreateStorageDirectories
 	fi
 	CheckDiskSpace
 
 	# Actual backup process
-	if [ "$SQL_BACKUP" != "no" ] && [ $CAN_BACKUP_SQL == true ]; then
-		if [ $_DRYRUN == false ] && [ "$ROTATE_SQL_BACKUPS" == "yes" ]; then
+	if [ "$SQL_BACKUP" != false ] && [ $CAN_BACKUP_SQL == true ]; then
+		if [ $_DRYRUN == false ] && [ "$ROTATE_SQL_BACKUPS" == true ]; then
 			RotateBackups "$SQL_STORAGE" "$ROTATE_SQL_COPIES"
 		fi
 		BackupDatabases
 	fi
 
-	if [ "$FILE_BACKUP" != "no" ] && [ $CAN_BACKUP_FILES == true ]; then
-		if [ $_DRYRUN == false ] && [ "$ROTATE_FILE_BACKUPS" == "yes" ]; then
+	if [ "$FILE_BACKUP" != false ] && [ $CAN_BACKUP_FILES == true ]; then
+		if [ $_DRYRUN == false ] && [ "$ROTATE_FILE_BACKUPS" == true ]; then
 			RotateBackups "$FILE_STORAGE" "$ROTATE_FILE_COPIES"
 		fi
 	        ## Add Rsync include / exclude patterns
@@ -1880,7 +1898,7 @@ function Usage {
 	__CheckArguments 0 $# "$@"    #__WITH_PARANOIA_DEBUG
 
 
-	if [ "$IS_STABLE" != "yes" ]; then
+	if [ "$IS_STABLE" != true ]; then
 		echo -e "\e[93mThis is an unstable dev build. Please use with caution.\e[0m"
 	fi
 
@@ -2038,6 +2056,9 @@ else
 	LOG_FILE="$LOGFILE"
 fi
 
+# v2.3 config syntax compatibility
+UpdateBooleans
+
 if [ ! -w "$(dirname $LOG_FILE)" ]; then
 	echo "Cannot write to log [$(dirname $LOG_FILE)]."
 else
@@ -2054,18 +2075,18 @@ if [ $no_maxtime == true ]; then
 fi
 
 if [ $partial_transfers == true ]; then
-	PARTIAL="yes"
+	PARTIAL=true
 fi
 
 if [ $delete_vanished == true ]; then
-	DELETE_VANISHED_FILES="yes"
+	DELETE_VANISHED_FILES=true
 fi
 
 if [ $dont_get_backup_size == true ]; then
-	GET_BACKUP_SIZE="no"
+	GET_BACKUP_SIZE=false
 fi
 
-if [ "$IS_STABLE" != "yes" ]; then
+if [ "$IS_STABLE" != true ]; then
 	Logger "This is an unstable dev build [$PROGRAM_BUILD]. Please use with caution." "WARN"
 fi
 
diff --git a/dev/ofunctions.sh b/dev/ofunctions.sh
index 0fea9b8..c0383ef 100644
--- a/dev/ofunctions.sh
+++ b/dev/ofunctions.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-## Generic and highly portable bash functions written in 2013-2018 by Orsiris de Jong - http://www.netpower.fr - ozy@netpower.fr
+## Generic and highly portable bash functions written in 2013-2019 by Orsiris de Jong - http://www.netpower.fr - ozy@netpower.fr
 
 #TODO: ExecTasks postponed arrays / files grow a lot. Consider having them "rolling" (cleaned at numberOfEvents)
 #TODO: command line arguments don't take -AaqV for example
@@ -9,7 +9,7 @@
 
 ## PROGRAM=program-name
 ## INSTANCE_ID=program-instance-name
-## _DEBUG=yes/no
+## _DEBUG=true/false
 ## _LOGGER_SILENT=true/false
 ## _LOGGER_VERBOSE=true/false
 ## _LOGGER_ERR_ONLY=true/false
@@ -31,7 +31,7 @@
 #### OFUNCTIONS MINI SUBSET ####
 #### OFUNCTIONS MICRO SUBSET ####
 _OFUNCTIONS_VERSION=2.3.0-RC2
-_OFUNCTIONS_BUILD=2018122103
+_OFUNCTIONS_BUILD=2019012801
 #### _OFUNCTIONS_BOOTSTRAP SUBSET ####
 _OFUNCTIONS_BOOTSTRAP=true
 #### _OFUNCTIONS_BOOTSTRAP SUBSET END ####
@@ -66,13 +66,13 @@ WARN_ALERT=false
 
 #### DEBUG SUBSET ####
 ## allow function call checks			#__WITH_PARANOIA_DEBUG
-if [ "$_PARANOIA_DEBUG" == "yes" ];then		#__WITH_PARANOIA_DEBUG
-	_DEBUG=yes				#__WITH_PARANOIA_DEBUG
+if [ "$_PARANOIA_DEBUG" == true ];then		#__WITH_PARANOIA_DEBUG
+	_DEBUG=true				#__WITH_PARANOIA_DEBUG
 fi						#__WITH_PARANOIA_DEBUG
 
-## allow debugging from command line with _DEBUG=yes
-if [ ! "$_DEBUG" == "yes" ]; then
-	_DEBUG=no
+## allow debugging from command line with _DEBUG=true
+if [ ! "$_DEBUG" == true ]; then
+	_DEBUG=false
 	_LOGGER_VERBOSE=false
 else
 	trap 'TrapError ${LINENO} $?' ERR
@@ -226,19 +226,19 @@ function RemoteLogger {
 
 	if [ "$level" == "CRITICAL" ]; then
 		_Logger "" "$prefix\e[1;33;41m$value\e[0m" true
-		if [ $_DEBUG == "yes" ]; then
+		if [ $_DEBUG == true ]; then
 			_Logger -e "" "[$retval] in [$(joinString , ${FUNCNAME[@]})] SP=$SCRIPT_PID P=$$" true
 		fi
 		return
 	elif [ "$level" == "ERROR" ]; then
 		_Logger "" "$prefix\e[31m$value\e[0m" true
-		if [ $_DEBUG == "yes" ]; then
+		if [ $_DEBUG == true ]; then
 			_Logger -e "" "[$retval] in [$(joinString , ${FUNCNAME[@]})] SP=$SCRIPT_PID P=$$" true
 		fi
 		return
 	elif [ "$level" == "WARN" ]; then
 		_Logger "" "$prefix\e[33m$value\e[0m" true
-		if [ $_DEBUG == "yes" ]; then
+		if [ $_DEBUG == true ]; then
 			_Logger -e "" "[$retval] in [$(joinString , ${FUNCNAME[@]})] SP=$SCRIPT_PID P=$$" true
 		fi
 		return
@@ -256,12 +256,12 @@ function RemoteLogger {
 		_Logger	 "" "$prefix$value"
 		return
 	elif [ "$level" == "DEBUG" ]; then
-		if [ "$_DEBUG" == "yes" ]; then
+		if [ "$_DEBUG" == true ]; then
 			_Logger "" "$prefix$value"
 			return
 		fi
 	elif [ "$level" == "PARANOIA_DEBUG" ]; then				#__WITH_PARANOIA_DEBUG
-		if [ "$_PARANOIA_DEBUG" == "yes" ]; then			#__WITH_PARANOIA_DEBUG
+		if [ "$_PARANOIA_DEBUG" == true ]; then			#__WITH_PARANOIA_DEBUG
 			_Logger "" "$prefix\e[35m$value\e[0m"			#__WITH_PARANOIA_DEBUG
 			return							#__WITH_PARANOIA_DEBUG
 		fi								#__WITH_PARANOIA_DEBUG
@@ -284,10 +284,9 @@ function RemoteLogger {
 
 # CRITICAL, ERROR, WARN sent to stderr, color depending on level, level also logged
 # NOTICE sent to stdout
-# VERBOSE sent to stdout if _LOGGER_VERBOSE = true
-# ALWAYS is sent to stdout unless _LOGGER_SILENT = true
-# DEBUG & PARANOIA_DEBUG are only sent to stdout if _DEBUG=yes
-# SIMPLE is a wrapper for QuickLogger that does not use advanced functionality
+# VERBOSE sent to stdout if _LOGGER_VERBOSE=true
+# ALWAYS is sent to stdout unless _LOGGER_SILENT=true
+# DEBUG & PARANOIA_DEBUG are only sent to stdout if _DEBUG=true
 function Logger {
 	local value="${1}"		# Sentence to log (in double quotes)
 	local level="${2}"		# Log level
@@ -337,22 +336,15 @@ function Logger {
 		_Logger "$prefix$value" "$prefix$value"
 		return
 	elif [ "$level" == "DEBUG" ]; then
-		if [ "$_DEBUG" == "yes" ]; then
+		if [ "$_DEBUG" == true ]; then
 			_Logger "$prefix$value" "$prefix$value"
 			return
 		fi
 	elif [ "$level" == "PARANOIA_DEBUG" ]; then				#__WITH_PARANOIA_DEBUG
-		if [ "$_PARANOIA_DEBUG" == "yes" ]; then			#__WITH_PARANOIA_DEBUG
+		if [ "$_PARANOIA_DEBUG" == true ]; then			#__WITH_PARANOIA_DEBUG
 			_Logger "$prefix$value" "$prefix\e[35m$value\e[0m"	#__WITH_PARANOIA_DEBUG
 			return							#__WITH_PARANOIA_DEBUG
 		fi								#__WITH_PARANOIA_DEBUG
-	elif [ "$level" == "SIMPLE" ]; then
-		if [ "$_LOGGER_SILENT" == true ]; then
-			_Logger "$preix$value"
-		else
-			_Logger "$preix$value" "$prefix$value"
-		fi
-		return
 	else
 		_Logger "\e[41mLogger function called without proper loglevel [$level].\e[0m" "\e[41mLogger function called without proper loglevel [$level].\e[0m" true
 		_Logger "Value was: $prefix$value" "Value was: $prefix$value" true
@@ -451,7 +443,7 @@ function KillAllChilds {
 
 #### CleanUp SUBSET ####
 function CleanUp {
-	if [ "$_DEBUG" != "yes" ]; then
+	if [ "$_DEBUG" != true ]; then
 		rm -f "$RUN_DIR/$PROGRAM."*".$SCRIPT_PID.$TSTAMP"
 		# Fix for sed -i requiring backup extension for BSD & Mac (see all sed -i statements)
 		rm -f "$RUN_DIR/$PROGRAM."*".$SCRIPT_PID.$TSTAMP.tmp"
@@ -494,7 +486,7 @@ function SendAlert {
 		return 0
 	fi
 
-	if [ "$_DEBUG" == "yes" ]; then
+	if [ "$_DEBUG" == true ]; then
 		Logger "Debug mode, no warning mail will be sent." "NOTICE"
 		return 0
 	fi
@@ -573,8 +565,9 @@ function SendEmail {
 
 	local i
 
-	if [ "${destinationMails[@]}" != "" ]; then
-		for i in "${destinationMails[@]}"; do
+	if [ "${destinationMails}" != "" ]; then
+		# Not quoted since we split at space character, and emails cannot contain spaces
+		for i in ${destinationMails}; do
 			if [ $(CheckRFC822 "$i") -ne 1 ]; then
 				Logger "Given email [$i] does not seem to be valid." "WARN"
 			fi
@@ -756,7 +749,7 @@ function LoadConfigFile {
 	else
 		revisionPresent=$(GetConfFileValue "$configFile" "CONFIG_FILE_REVISION" true)
 		if [ "$(IsNumeric $revisionPresent)" -eq 0 ]; then
-			revisionPresent=0
+			Logger "CONFIG_FILE_REVISION does not seem numeric [$revisionPresent]." "DEBUG"
 		fi
 		if [ "$revisionRequired" != "" ]; then
 			if [ $(VerComp "$revisionPresent" "$revisionRequired") -eq 2 ]; then
@@ -898,7 +891,7 @@ function ExecTasks {
 	Logger "${FUNCNAME[0]} id [$id] called by [${FUNCNAME[1]} < ${FUNCNAME[2]} < ${FUNCNAME[3]} < ${FUNCNAME[4]} < ${FUNCNAME[5]} < ${FUNCNAME[6]} ...]." "PARANOIA_DEBUG"	 #__WITH_PARANOIA_DEBUG
 
 	# Since ExecTasks takes up to 17 arguments, do a quick preflight check in DEBUG mode
-	if [ "$_DEBUG" == "yes" ]; then
+	if [ "$_DEBUG" == true ]; then
 		declare -a booleans=(readFromFile counting spinner noTimeErrorLog noErrorLogsAtAll)
 		for i in "${booleans[@]}"; do
 			test="if [ \$$i != false ] && [ \$$i != true ]; then Logger \"Bogus $i value [\$$i] given to ${FUNCNAME[0]}.\" \"CRITICAL\"; exit 1; fi"
@@ -1145,7 +1138,7 @@ function ExecTasks {
 		# Trivial wait time for bash to not eat up all CPU
 		sleep $sleepTime
 
-		if [ "$_PERF_PROFILER" == "yes" ]; then				##__WITH_PARANOIA_DEBUG
+		if [ "$_PERF_PROFILER" == true ]; then				##__WITH_PARANOIA_DEBUG
 			_PerfProfiler						##__WITH_PARANOIA_DEBUG
 		fi								##__WITH_PARANOIA_DEBUG
 
@@ -1512,7 +1505,7 @@ function GetLocalOS {
 		LOCAL_OS="BusyBox"
 		;;
 		*)
-		if [ "$IGNORE_OS_TYPE" == "yes" ]; then
+		if [ "$IGNORE_OS_TYPE" == true ]; then
 			Logger "Running on unknown local OS [$localOsVar]." "WARN"
 			return
 		fi
@@ -1570,7 +1563,7 @@ function GetLocalOS {
 function __CheckArguments {
 	# Checks the number of arguments of a function and raises an error if some are missing
 
-	if [ "$_DEBUG" == "yes" ]; then
+	if [ "$_DEBUG" == true ]; then
 		local numberOfArguments="${1}" # Number of arguments the tested function should have, can be a number of a range, eg 0-2 for zero to two arguments
 		local numberOfGivenArguments="${2}" # Number of arguments that have been passed
 
@@ -1627,7 +1620,7 @@ function __CheckArguments {
 function GetRemoteOS {
 	__CheckArguments 0 $# "$@"	#__WITH_PARANOIA_DEBUG
 
-	if [ "$REMOTE_OPERATION" != "yes" ]; then
+	if [ "$REMOTE_OPERATION" != true ]; then
 		return 0
 	fi
 
@@ -1744,7 +1737,7 @@ ENDSSH
 			exit 1
 			;;
 			*)
-			if [ "$IGNORE_OS_TYPE" == "yes" ]; then		#DOC: Undocumented debug only setting
+			if [ "$IGNORE_OS_TYPE" == true ]; then		#DOC: Undocumented debug only setting
 				Logger "Running on unknown remote OS [$remoteOsVar]." "WARN"
 				return
 			fi
@@ -1784,7 +1777,7 @@ function RunLocalCommand {
 		Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID.$TSTAMP)" "NOTICE"
 	fi
 
-	if [ "$STOP_ON_CMD_ERROR" == "yes" ] && [ $retval -ne 0 ]; then
+	if [ "$STOP_ON_CMD_ERROR" == true ] && [ $retval -ne 0 ]; then
 		Logger "Stopping on command execution error." "CRITICAL"
 		exit 1
 	fi
@@ -1797,7 +1790,7 @@ function RunRemoteCommand {
 	__CheckArguments 2 $# "$@"	#__WITH_PARANOIA_DEBUG
 
 
-	if [ "$REMOTE_OPERATION" != "yes" ]; then
+	if [ "$REMOTE_OPERATION" != true ]; then
 		Logger "Ignoring remote command [$command] because remote host is not configured." "WARN"
 		return 0
 	fi
@@ -1827,7 +1820,7 @@ function RunRemoteCommand {
 		Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID.$TSTAMP)" "NOTICE"
 	fi
 
-	if [ "$STOP_ON_CMD_ERROR" == "yes" ] && [ $retval -ne 0 ]; then
+	if [ "$STOP_ON_CMD_ERROR" == true ] && [ $retval -ne 0 ]; then
 		Logger "Stopping on command execution error." "CRITICAL"
 		exit 1
 	fi
@@ -1878,9 +1871,9 @@ function CheckConnectivityRemoteHost {
 
 	local retval
 
-	if [ "$_PARANOIA_DEBUG" != "yes" ]; then # Do not loose time in paranoia debug		#__WITH_PARANOIA_DEBUG
+	if [ "$_PARANOIA_DEBUG" != true ]; then # Do not loose time in paranoia debug		#__WITH_PARANOIA_DEBUG
 
-		if [ "$REMOTE_HOST_PING" != "no" ] && [ "$REMOTE_OPERATION" != "no" ]; then
+		if [ "$REMOTE_HOST_PING" != false ] && [ "$REMOTE_OPERATION" != false ]; then
 			eval "$PING_CMD $REMOTE_HOST > /dev/null 2>&1" &
 			ExecTasks $! "${FUNCNAME[0]}" false 0 0 60 180 true $SLEEP_TIME $KEEP_LOGGING
 			#ExecTasks "${FUNCNAME[0]}" 0 0 60 180 $SLEEP_TIME $KEEP_LOGGING true true false false 1 $!
@@ -1900,7 +1893,7 @@ function CheckConnectivity3rdPartyHosts {
 	local retval
 	local i
 
-	if [ "$_PARANOIA_DEBUG" != "yes" ]; then # Do not loose time in paranoia debug		#__WITH_PARANOIA_DEBUG
+	if [ "$_PARANOIA_DEBUG" != true ]; then # Do not loose time in paranoia debug		#__WITH_PARANOIA_DEBUG
 
 		if [ "$REMOTE_3RD_PARTY_HOSTS" != "" ]; then
 			remote3rdPartySuccess=false
@@ -2013,14 +2006,14 @@ function PreInit {
 	local compressionString
 
 	## SSH compression
-	if [ "$SSH_COMPRESSION" != "no" ]; then
+	if [ "$SSH_COMPRESSION" != false ]; then
 		SSH_COMP=-C
 	else
 		SSH_COMP=
 	fi
 
 	## Ignore SSH known host verification
-	if [ "$SSH_IGNORE_KNOWN_HOSTS" == "yes" ]; then
+	if [ "$SSH_IGNORE_KNOWN_HOSTS" == true ]; then
 		SSH_OPTS="-o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no"
 	fi
 
@@ -2030,7 +2023,7 @@ function PreInit {
 	fi
 
 	## Sudo execution option
-	if [ "$SUDO_EXEC" == "yes" ]; then
+	if [ "$SUDO_EXEC" == true ]; then
 		if [ "$RSYNC_REMOTE_PATH" != "" ]; then
 			RSYNC_PATH="sudo $RSYNC_REMOTE_PATH/$RSYNC_EXECUTABLE"
 		else
@@ -2194,19 +2187,19 @@ function InitRemoteOSDependingSettings {
 	fi
 
 	RSYNC_ATTR_ARGS=""
-	if [ "$PRESERVE_PERMISSIONS" != "no" ]; then
+	if [ "$PRESERVE_PERMISSIONS" != false ]; then
 		RSYNC_ATTR_ARGS=$RSYNC_ATTR_ARGS" -p"
 	fi
-	if [ "$PRESERVE_OWNER" != "no" ]; then
+	if [ "$PRESERVE_OWNER" != false ]; then
 		RSYNC_ATTR_ARGS=$RSYNC_ATTR_ARGS" -o"
 	fi
-	if [ "$PRESERVE_GROUP" != "no" ]; then
+	if [ "$PRESERVE_GROUP" != false ]; then
 		RSYNC_ATTR_ARGS=$RSYNC_ATTR_ARGS" -g"
 	fi
-	if [ "$PRESERVE_EXECUTABILITY" != "no" ]; then
+	if [ "$PRESERVE_EXECUTABILITY" != false ]; then
 		RSYNC_ATTR_ARGS=$RSYNC_ATTR_ARGS" --executability"
 	fi
-	if [ "$PRESERVE_ACL" == "yes" ]; then
+	if [ "$PRESERVE_ACL" == true ]; then
 		if [ "$LOCAL_OS" != "MacOSX" ] && [ "$REMOTE_OS" != "MacOSX" ] && [ "$LOCAL_OS" != "msys" ] && [ "$REMOTE_OS" != "msys" ] && [ "$LOCAL_OS" != "Cygwin" ] && [ "$REMOTE_OS" != "Cygwin" ] && [ "$LOCAL_OS" != "BusyBox" ] && [ "$REMOTE_OS" != "BusyBox" ] && [ "$LOCAL_OS" != "Android" ] && [ "$REMOTE_OS" != "Android" ]; then
 			RSYNC_ATTR_ARGS=$RSYNC_ATTR_ARGS" -A"
 		else
@@ -2214,45 +2207,45 @@ function InitRemoteOSDependingSettings {
 
 		fi
 	fi
-	if [ "$PRESERVE_XATTR" == "yes" ]; then
+	if [ "$PRESERVE_XATTR" == true ]; then
 		if [ "$LOCAL_OS" != "MacOSX" ] && [ "$REMOTE_OS" != "MacOSX" ] && [ "$LOCAL_OS" != "msys" ] && [ "$REMOTE_OS" != "msys" ] && [ "$LOCAL_OS" != "Cygwin" ] && [ "$REMOTE_OS" != "Cygwin" ] && [ "$LOCAL_OS" != "BusyBox" ] && [ "$REMOTE_OS" != "BusyBox" ]; then
 			RSYNC_ATTR_ARGS=$RSYNC_ATTR_ARGS" -X"
 		else
 			Logger "Disabling extended attributes synchronization on [$LOCAL_OS] due to lack of support." "NOTICE"
 		fi
 	fi
-	if [ "$RSYNC_COMPRESS" == "yes" ]; then
+	if [ "$RSYNC_COMPRESS" == true ]; then
 		if [ "$LOCAL_OS" != "MacOSX" ] && [ "$REMOTE_OS" != "MacOSX" ]; then
 			RSYNC_DEFAULT_ARGS=$RSYNC_DEFAULT_ARGS" -zz --skip-compress=gz/xz/lz/lzma/lzo/rz/jpg/mp3/mp4/7z/bz2/rar/zip/sfark/s7z/ace/apk/arc/cab/dmg/jar/kgb/lzh/lha/lzx/pak/sfx"
 		else
 			Logger "Disabling compression skips on synchronization on [$LOCAL_OS] due to lack of support." "NOTICE"
 		fi
 	fi
-	if [ "$COPY_SYMLINKS" == "yes" ]; then
+	if [ "$COPY_SYMLINKS" == true ]; then
 		RSYNC_DEFAULT_ARGS=$RSYNC_DEFAULT_ARGS" -L"
 	fi
-	if [ "$KEEP_DIRLINKS" == "yes" ]; then
+	if [ "$KEEP_DIRLINKS" == true ]; then
 		RSYNC_DEFAULT_ARGS=$RSYNC_DEFAULT_ARGS" -K"
 	fi
 	if [ "$RSYNC_OPTIONAL_ARGS" != "" ]; then
 		RSYNC_DEFAULT_ARGS=$RSYNC_DEFAULT_ARGS" "$RSYNC_OPTIONAL_ARGS
 	fi
-	if [ "$PRESERVE_HARDLINKS" == "yes" ]; then
+	if [ "$PRESERVE_HARDLINKS" == true ]; then
 		RSYNC_DEFAULT_ARGS=$RSYNC_DEFAULT_ARGS" -H"
 	fi
-	if [ "$CHECKSUM" == "yes" ]; then
+	if [ "$CHECKSUM" == true ]; then
 		RSYNC_TYPE_ARGS=$RSYNC_TYPE_ARGS" --checksum"
 	fi
 	if [ "$BANDWIDTH" != "" ] && [ "$BANDWIDTH" != "0" ]; then
 		RSYNC_DEFAULT_ARGS=$RSYNC_DEFAULT_ARGS" --bwlimit=$BANDWIDTH"
 	fi
 
-	if [ "$PARTIAL" == "yes" ]; then
+	if [ "$PARTIAL" == true ]; then
 		RSYNC_DEFAULT_ARGS=$RSYNC_DEFAULT_ARGS" --partial --partial-dir=\"$PARTIAL_DIR\""
 		RSYNC_PARTIAL_EXCLUDE="--exclude=\"$PARTIAL_DIR\""
 	fi
 
-	if [ "$DELTA_COPIES" != "no" ]; then
+	if [ "$DELTA_COPIES" != false ]; then
 		RSYNC_DEFAULT_ARGS=$RSYNC_DEFAULT_ARGS" --no-whole-file"
 	else
 		RSYNC_DEFAULT_ARGS=$RSYNC_DEFAULT_ARGS" --whole-file"
diff --git a/host_backup.conf.example b/host_backup.conf.example
index b15fccd..f1589b7 100644
--- a/host_backup.conf.example
+++ b/host_backup.conf.example
@@ -13,8 +13,8 @@ INSTANCE_ID="test-backup"
 LOGFILE=""
 
 ## Elements to backup
-SQL_BACKUP=yes
-FILE_BACKUP=yes
+SQL_BACKUP=true
+FILE_BACKUP=true
 
 ## Backups can be done local, pulled from another server or pushed to a backup server. Available options are [local,pull,push].
 ## Pulled backups are the safest option, as the backup server contains the RSA key and cannot be compromised by another server.
@@ -29,7 +29,7 @@ FILE_STORAGE="/home/storage/backup/files"
 ## Backup encryption using GPG and rsync.
 ## Push backups get encrypted locally in CRYPT_STORAGE before they are sent to the remote system
 ## Local and pull backups get encrypted after backup, in CRYPT_STORAGE
-ENCRYPTION=no
+ENCRYPTION=false
 
 ## Backup encryption needs a temporary storage space in order to encrypt files before sending them (absolute paths of the local or remote system)
 ## In case of a pull backup, an encrypted copy of FILE_BACKUP goes here
@@ -42,17 +42,17 @@ GPG_RECIPIENT="John Doe"
 PARALLEL_ENCRYPTION_PROCESSES=
 
 ## Create backup directories if they do not exist
-CREATE_DIRS=yes
+CREATE_DIRS=true
 
 ## Keep absolute source path in your backup, eg: /your/backup/storage/the/remote/server/files
 ## You should leave this enabled if you intend to use 'backup task division' functionality of oBackup, or everything will end up in the same directory.
-KEEP_ABSOLUTE_PATHS=yes
+KEEP_ABSOLUTE_PATHS=true
 
 ## Generate an alert if backup size is lower than given value in Kb (this can also help identifying empty mount dirs).
 BACKUP_SIZE_MINIMUM=1024
 
 ## Check backup size before proceeding
-GET_BACKUP_SIZE=yes
+GET_BACKUP_SIZE=true
 
 ## Generate an alert if storage free space is lower than given value in Kb.
 ## Keep in mind that disabling backup file size test will only test min space against SQL backup size.
@@ -74,23 +74,23 @@ SSH_PASSWORD_FILE=""
 _REMOTE_TOKEN=SomeAlphaNumericToken9
 
 ## ssh compression should be used unless your remote connection is good enough (LAN)
-SSH_COMPRESSION=yes
+SSH_COMPRESSION=true
 
 ## Ignore ssh known hosts verification. DANGER WILL ROBINSON DANGER: This can lead to security risks. Only enable if you know what you're doing.
 ## Works on Redhat / CentOS, doesn't work on Debian / Ubunutu
-SSH_IGNORE_KNOWN_HOSTS=no
+SSH_IGNORE_KNOWN_HOSTS=false
 
 ## Remote rsync executable path. Leave this empty in most cases
 RSYNC_REMOTE_PATH=""
 
 ## Check for connectivity to remote host before launching remote backup tasks. Be sure the hosts responds to ping. Failing to ping will skip current task.
-REMOTE_HOST_PING=yes
+REMOTE_HOST_PING=true
 
 ## Check for internet access by pinging one or more 3rd party hosts before remote backup tasks. Leave empty if you don't want this check to be be performed. Failing to ping will skip current task.
 REMOTE_3RD_PARTY_HOSTS="www.kernel.org www.google.com"
 
 ## If enabled, commands will be executed as superuser on remote side. See documentation for /etc/sudoers configuration ("find", "du", "tee" and "rsync" need to be allowed). Requiretty needs to be disabled.
-SUDO_EXEC=no
+SUDO_EXEC=false
 
 ###### DATABASE SPECIFIC OPTIONS
 
@@ -99,9 +99,9 @@ SQL_USER=root
 
 ## Enabling the following option will save all databases on local or remote given SQL instance except the ones specified in the exclude list.
 ## Every found database will be backed up as separate backup task.
-DATABASES_ALL=yes
+DATABASES_ALL=true
 DATABASES_ALL_EXCLUDE_LIST="test;mysql"
-## Alternatively, if DATABASES_ALL=no, you can specify a list of databases to backup separated by semi-colons.
+## Alternatively, if DATABASES_ALL=false, you can specify a list of databases to backup separated by semi-colons.
 #DATABASES_LIST="somedatabase"
 
 ## Max backup execution time per Database task. Soft max exec time generates a warning only. Hard max exec time generates a warning and stops current backup task.
@@ -157,40 +157,40 @@ PATH_SEPARATOR_CHAR=";"
 RSYNC_OPTIONAL_ARGS=""
 
 ## Preserve basic linux permissions
-PRESERVE_PERMISSIONS=yes
-PRESERVE_OWNER=yes
-PRESERVE_GROUP=yes
+PRESERVE_PERMISSIONS=true
+PRESERVE_OWNER=true
+PRESERVE_GROUP=true
 ## On MACOS X, does not work and will be ignored 
-PRESERVE_EXECUTABILITY=yes
+PRESERVE_EXECUTABILITY=true
 
 ## Preserve ACLS. Make sure source and target FS can hold same ACLs or you'll get loads of errors.
-PRESERVE_ACL=no
+PRESERVE_ACL=false
 ## Preserve Xattr. MAke sure source and target FS can hold same Xattr or you'll get loads of errors.
-PRESERVE_XATTR=no
+PRESERVE_XATTR=false
 
 ## Transforms symlinks into referent files/dirs
-COPY_SYMLINKS=yes
+COPY_SYMLINKS=true
 ## Treat symlinked dirs as dirs. CAUTION: This also follows symlinks outside of the replica root.
-KEEP_DIRLINKS=yes
+KEEP_DIRLINKS=true
 ## Preserve hard links. Make sure source and target FS can manage hard links or you will lose them.
-PRESERVE_HARDLINKS=no
+PRESERVE_HARDLINKS=false
 
 
 ## Let RSYNC compress file transfers. Do not use this on local-local backup schemes. Also, this is not useful if SSH compression is enabled.
-RSYNC_COMPRESS=no
+RSYNC_COMPRESS=false
 
 ## Max execution time per file backup task. Soft is warning only. Hard is warning, stopping backup and processing next one one file list. Tilme is specified in seconds
 SOFT_MAX_EXEC_TIME_FILE_TASK=3600
 HARD_MAX_EXEC_TIME_FILE_TASK=7200
 
 ## Keep partial uploads that can be resumed on next run, experimental feature
-PARTIAL=no
+PARTIAL=false
 
 ## Delete files on destination that vanished from source. Do not turn this on unless you enabled backup rotation  or a snapshotting FS like zfs to keep those vanished files on the destination.
-DELETE_VANISHED_FILES=no
+DELETE_VANISHED_FILES=false
 
-## Use delta copy algortithm (usefull when local paths are network drives), defaults to yes
-DELTA_COPIES=yes
+## Use delta copy algortithm (usefull when local paths are network drives), defaults to true
+DELTA_COPIES=true
 
 ## Bandwidth limit Kbytes / second for file backups. Leave 0 to disable limitation.
 BANDWIDTH=0
@@ -228,9 +228,9 @@ HARD_MAX_EXEC_TIME_TOTAL=36000
 KEEP_LOGGING=1801
 
 ## Backup Rotation. You may rotate backups if you don't use snapshots on your backup server.
-ROTATE_SQL_BACKUPS=no
+ROTATE_SQL_BACKUPS=false
 ROTATE_SQL_COPIES=7
-ROTATE_FILE_BACKUPS=no
+ROTATE_FILE_BACKUPS=false
 ROTATE_FILE_COPIES=7
 
 ###### EXECUTION HOOKS
@@ -248,7 +248,7 @@ MAX_EXEC_TIME_PER_CMD_BEFORE=0
 MAX_EXEC_TIME_PER_CMD_AFTER=0
 
 ## Stops whole backup execution if one of the above commands fail
-STOP_ON_CMD_ERROR=no
+STOP_ON_CMD_ERROR=false
 
 ## Run local and remote after backup cmd's even on failure
-RUN_AFTER_CMD_ON_ERROR=no
+RUN_AFTER_CMD_ON_ERROR=false