Oracle uses the batch file expdp for regular backup

bat file:

@echo off 
echo ================================================ 
echo  Windows环境下Oracle数据库的自动备份脚本
echo  1. 使用当前日期命名备份文件。
echo ================================================
::对应用户名
set USER=QXXXXX
::对应用户的密码
set PASSWORD=QXXXXX
::导出数据(根据日期加时分秒来命名备份文件)
expdp %USER%/%PASSWORD% directory=qmysptbackup dumpfile=yxhl_%date:~0,4%%date:~5,2%%date:~8,2%%TIME:~0,2%%TIME:~3,2%%TIME:~6,2%.dmp logfile=yxhl_%date:~0,4%%date:~5,2%%date:~8,2%%TIME:~0,2%%TIME:~3,2%%TIME:~6,2%.log schemas=%USER%

::如果报错LRM-00112: 参数'logfile'不允许有多个值。 则是上面时间格式输出有问题，有空格，输出了两个值，加上下划线_ 即可 (在date和time之间加下划线 )
::yxhl_%date:~0,4%%date:~5,2%%date:~8,2%_%TIME:~0,2%%TIME:~3,2%%TIME:~6,2%.log

Change it to bat format, add it to the task plan , the prerequisite setting of the script:
create a logical directory:

SQL> create directory data_dir as '/home/oracle/dmp/user';

Directory created.

Use the sys administrator to give your designated users the authority to operate in the directory. /directory empower

SQL> grant read,write on directory data_dir to user;

Grant succeeded.

The result after execution:

It is also worth noting that the value of this directory must be changed in Oracle.

create or replace directory dumpdir as '/home/dumpfiles';

It’s not right to change it directly in the bat outside,,,

Reference:
https://www.cnblogs.com/promise-x/p/7477360.html
https://mhl.xyz/Oracle/directory.html
https://www.cnblogs.com/luck666/p/10253686. html

split line===
About the deletion:
shell:

find /data01/backup/ -mtime +15 -name "user*.dump" -exec rm -rf {
    
    } \;　　#删除前15天的数据
#find 对应目录 -mtime +天数 -name "文件名" -exec rm -rf {} \

powershell:

set DATADIR=F:\app\Administrator\admin\orcl\dpdump\
::删除7天前的备份。  
forfiles /p %DATADIR% /s /m HBGYDX*.DUMP /d -7 /c "cmd /c del @path"

Today I came across a pure dockerfile in a docker environment. There is no find instruction. To delete the file delFile.sh older than 30 days

#!/bin/bash

#创建文本
for i in `seq 1 40`
do
        touch `date -d "-$i day" +%Y%m%d`.txt
done

#删除过去30天的文件   20201010  今天20201109
before30Day=$(date -d "-30 day" +%Y%m%d)

for i in `ls *.txt`
do
	# ${i:0:8}截取前8位 ， if里面双方变量要加双引号，否则报错
        if [ "${i:0:8}" -le "$before30Day" ];then
                echo "该文件是30天之前的： $i"
                #rm -f $i
        fi
done

Another person’s writing:

At 11:50:10 on February 19, 2021, let's
talk about another format. Draw a scoop according to gourd

xx-logstssh-2021.01.29.log
xx-logstssh-2021.02.09.log

#!/bin/bash
before7Day=$(date -d "-7 day" +%Y%m%d)

for i in `ls *.log`
do
		#sed不支持pcre表达，比如 \d
        compareDate=`echo $i | sed -r 's#.*([0-9]{4})\.([0-9]{2})\.([0-9]{2}).*#\1\2\3#'`
        if [ "$compareDate" -lt "$before7Day" ];then
                echo "该文件是7天之前的： $i"
                #rm -f $i
        fi
done