Shell腳本不刪除文件

Question

我正在使用一些shell腳本編碼，在這里

DBHOSTNAME=********

DBUSERNAME=*****

DBPASSWORD=******

DBNAME=******

BACKUPFOLDER=$HOME/*******

DELETEFILES=Y

DAILYBACKUP=Y

NUMDAILYBACKUPS=2

WEEKLYBACKUP=Y

NUMWEEKLYBACKUPS=2

MONTHLYBACKUP=Y

NUMMONTHLYBACKUPS=2

TODATE=$(date +%d)
TOMORROW=`date +%d -d "1 day"`
TODAY=$(date +%a)
MONTH=$(date +%B)
WEEK=$(date +%U)

if [ $TODATE -gt $TOMORROW ] && [ "$MONTHLYBACKUP" == "Y" ]
then
    /usr/bin/mysqldump -h $DBHOSTNAME -u $DBUSERNAME -p$DBPASSWORD $DBNAME  | gzip > $BACKUPFOLDER/$DBNAME'_'`date '+%m-%d-%Y'`'_'$MONTH.sql.gz
else
    if [ "$TODAY" == "Sat" ] && [ "$WEEKLYBACKUP" == "Y" ]
    then
        /usr/bin/mysqldump -h $DBHOSTNAME -u $DBUSERNAME -p$DBPASSWORD $DBNAME  | gzip > $BACKUPFOLDER/$DBNAME'_'`date '+%m-%d-%Y'`'_'Week$WEEK.sql.gz
    else 
        if [ "$DAILYBACKUP" == "Y" ] 
        then
            /usr/bin/mysqldump -h $DBHOSTNAME -u $DBUSERNAME -p$DBPASSWORD $DBNAME  | gzip > $BACKUPFOLDER/$DBNAME'_'`date '+%m-%d-%Y'`'_'$TODAY.sql.gz
        fi
    fi
fi




if [ $DELETEFILES == Y ]
then
    NUMWEEKLY=$[$NUMWEEKLYBACKUPS*7]
    NUMMONTHLY=$[$NUMMONTHLYBACKUPS*31]
    find $BACKUPFOLDER/*Sun.sql.gz -type f -mtime +$NUMDAILYBACKUPS -delete 2> /dev/null
    find $BACKUPFOLDER/*Mon.sql.gz -type f -mtime +$NUMDAILYBACKUPS -delete 2> /dev/null
    find $BACKUPFOLDER/*Tue.sql.gz -type f -mtime +$NUMDAILYBACKUPS -delete 2> /dev/null
    find $BACKUPFOLDER/*Wed.sql.gz -type f -mtime +$NUMDAILYBACKUPS -delete 2> /dev/null
    find $BACKUPFOLDER/*Thu.sql.gz -type f -mtime +$NUMDAILYBACKUPS -delete 2> /dev/null
    find $BACKUPFOLDER/*Fri.sql.gz -type f -mtime +$NUMDAILYBACKUPS -delete 2> /dev/null
    find $BACKUPFOLDER/*Sat.sql.gz -type f -mtime +$NUMDAILYBACKUPS -delete 2> /dev/null
    find $BACKUPFOLDER/*Week*.sql.gz -type f -mtime +$NUMWEEKLY -delete 2> /dev/null
    find $BACKUPFOLDER/*January.sql.gz -type f -mtime +$NUMMONTHLY -delete 2> /dev/null
    find $BACKUPFOLDER/*February.sql.gz -type f -mtime +$NUMMONTHLY -delete 2> /dev/null
    find $BACKUPFOLDER/*March.sql.gz -type f -mtime +$NUMMONTHLY -delete 2> /dev/null
    find $BACKUPFOLDER/*April.sql.gz -type f -mtime +$NUMMONTHLY -delete 2> /dev/null
    find $BACKUPFOLDER/*May.sql.gz -type f -mtime +$NUMMONTHLY -delete 2> /dev/null
    find $BACKUPFOLDER/*June.sql.gz -type f -mtime +$NUMMONTHLY -delete 2> /dev/null
    find $BACKUPFOLDER/*July.sql.gz -type f -mtime +$NUMMONTHLY -delete 2> /dev/null
    find $BACKUPFOLDER/*August.sql.gz -type f -mtime +$NUMMONTHLY -delete 2> /dev/null
    find $BACKUPFOLDER/*September.sql.gz -type f -mtime +$NUMMONTHLY -delete 2> /dev/null
    find $BACKUPFOLDER/*October.sql.gz -type f -mtime +$NUMMONTHLY -delete 2> /dev/null
    find $BACKUPFOLDER/*November.sql.gz -type f -mtime +$NUMMONTHLY -delete 2> /dev/null
    find $BACKUPFOLDER/*December.sql.gz -type f -mtime +$NUMMONTHLY -delete 2> /dev/null
fi

它工作正常，但不刪除舊文件，我從以下地址http://www.htpcbeginner.com/automatic-mysql-database-backup-on-godaddy/3/

我需要的是3天的備份

今日文件存放在文件夾03/01/2017 04/01/2017 05/01/2017

和明天應該是04/01/2017 05/01/2017 06/01/2017

它應該刪除3jan文件

Answer 1

除了評論者所說的以外，我認為關鍵是您的find命令。 例如，您有：

find $BACKUPFOLDER/*Sun.sql.gz -type f -mtime +$NUMDAILYBACKUPS -delete 2> /dev/null

但這應該是

find "$BACKUPFOLDER" -name '*Sun.sql.gz' -type f -mtime "+$NUMDAILYBACKUPS" -delete 

使用find ，將分別列出路徑（ "$BACKUPFOLDER" ）和文件名（ -name '*Sun.sql.gz' ）。 您還可以單引號引用文件名，以防止外殼擴展它們。

調試時，請勿使用2> /dev/null 。 那會丟棄錯誤消息，否則您可能會發現這些消息對解決問題有幫助:)。