linux-tutorial/codes/linux/tool/Daily_Archive.sh

#!/usr/bin/env bash

#
# Daily_Archive - Archive designated files & directories
######################################################
#
# Gather Current Date
#
DATE=`date +%y%m%d`
#
# Set Archive File Name
#
FILE=archive$DATE.tar.gz
#
# Set Configuration and Destination File
#
CONFIG_FILE=/home/tiandi/archive/Files_To_Backup
DESTINATION=/home/tiandi/archive/$FILE
#
##################### Main Script ###############
#
# Check Backup Config file exists
#
if [ -f $CONFIG_FILE ] #Make sure the config file still exists
then
	echo
else
	echo
	echo "$CONFIG_FILE does not exist."
	echo "Backup not completed due to missing Configuration file"
	echo
	exit
fi
#
# Build the names of all the files to backup
#
FILE_NO=1 # Start on Line 1 of Config file.
exec < $CONFIG_FILE # Redirect Std Input to name of Config File
#
read FILE_NAME # Read 1st record
#
while [ $? -eq 0 ]
do
	# Make sure the file or directory exists.
	if [ -f $FILE_NAME -o -d $FILE_NAME ]
	then
		# If file exists, add its name to the lists
		FILE_LIST="$FILE_LIST $FILE_NAME"
	else
		# If file doesn't exist, issue warning
		echo
		echo "$FILE_NAME, does not exist."
		echo "Obviously, I will not include it in this archive."
		echo "It is listed on line $FILE_NO of the config file."
		echo "Continuing to build archive file."
		echo
	fi
	#
	FILE_NO=$[ $FILE_NO + 1 ] # Increase Line/File number by one
	read FILE_NAME # Read next record.
done
###########################################################
#
# Backup the files and Compress Archive
#
tar -czf $DESTINATION $FILE_LIST 2> /dev/null
#