backup site script

#!/usr/local/bin/bash
# version 1.0
# usage: ./backup.sh domain.com

#Config
BACKUPCONFIG="backup-config.txt"; #domain sourcepath dbhost dbname dbuser dbpass
BACKUPPATH="/home/infact-m6/backup";

BACKUPSERVER="infact-m3.sakura.ne.jp";
BACKUPSERVER_USERNAME="infact-m3";
BACKUPSERVER_PATH="/home/infact-m3/backup/";


backupcodeanddatabase () {
    local  FS FT;

    FT=`date +$2/$1-%Y-%m-%d-%H:%M.tar.bz2`;
    FS=`date +$2/$1-%Y-%m-%d-%H:%M.sql`;

    ( cd $TD || {
        echo "bad $TD" && return 2
        };
    ) 

    if [ ! -z "$_U" ] ; then
            mysqldump -u$_U -p$_P -h$_H $_N > $FS;
    fi

    tar -cvjSf  $FT $TD ;

    SSH_SCRIPT="cd $BACKUPSERVER_PATH; mkdir $1; uname -a"; 
    ssh -n "$BACKUPSERVER_USERNAME@$BACKUPSERVER" "$SSH_SCRIPT";
    scp -r $2 "$BACKUPSERVER_USERNAME@$BACKUPSERVER:$BACKUPSERVER_PATH/$1";
    rm -rf  $2;

}

dobackup () {
    MONTH=$(date +"%Y-%m");
    
    BACKUPDOMAIN="$BACKUPPATH/$DOMAIN";
    if [ ! -d $BACKUPDOMAIN ]; then
        mkdir $BACKUPDOMAIN
    fi

    BACKUP="$BACKUPDOMAIN/$MONTH";
    if [ ! -d $BACKUP ]; then
        mkdir $BACKUP
    fi

    DAY=$(date +"%d");
    BACKUP="$BACKUPDOMAIN/$MONTH/$DAY";
    if [ ! -d $BACKUP ]; then
        mkdir $BACKUP
    fi

    if [ -d "$HOSTPATH" ]; then
        backupcodeanddatabase $DOMAIN $BACKUP
        echo $HOSTPATH;
    else
        echo "directory not found: $HOSTPATH/$DOMAIN/"
    fi
}


while IFS='' read -r line ; do
    I=0;
    echo "$line";
    if [ "$line" != "" ]; then
        for text in $(echo $line | tr " " "\n")
        do
            if [ "$I" == 0 ]; then
                DOMAIN="$text";
            fi
            if [ "$I" == 1 ]; then
                 HOSTPATH="$text";
                 TD="$text";
            fi
            if [ "$I" == 2 ]; then
                _H="$text";
            fi
            if [ "$I" == 3 ]; then
             _N="$text";
            fi
            if [ "$I" == 4 ]; then
             _U="$text";
            fi
            if [ "$I" == 5 ]; then
             _P="$text";
            fi
            I=$((I+1));

        done 
    fi
    dobackup

done < "$BACKUPCONFIG"
exit 0