Linux 使用 crontab 删除旧文件
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/5375409/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
deleting old files using crontab
提问by Ran
I use the following crontab record in order to daily backup my DB:
我使用以下 crontab 记录来每天备份我的数据库：
0 2 * * * MYSQL_PWD=password mysqldump -u user db_name > $HOME/db_backups/db_name-$(date +\%Y-\%m-\%d-\%H-\%M).sql 2>> $HOME/db_backups/cron.log
I want to add another crontab record that will delete the DB dumps that are older then one month.
我想添加另一个 crontab 记录，该记录将删除超过一个月的数据库转储。
Any thoughts?
有什么想法吗？
采纳答案by dogbane
Just create another cron:
只需创建另一个 cron：
0 3 * * * find $HOME/db_backups -name "db_name*.sql" -mtime +30 -exec rm {} \; >> $HOME/db_backups/purge.log 2>&1
It will find all backups older than 30 days and delete them.
它将找到所有超过 30 天的备份并将其删除。
回答by Shamit Verma
find /db_backups/ -mtime +30 -delete
This command would delete DB backups older than 30 days.
此命令将删除超过 30 天的数据库备份。
回答by Simon Richter
There is a tool called tmpreaperthat securely deletes files matching certain criteria, such as an access or modification date ndays in the past.
有一种称为tmpreaper安全删除符合特定条件的文件的工具，例如过去n天的访问或修改日期。
