Yyds dry inventory method of deleting expired documents in batch

Catalog

  problem

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problem

There is a problem today , The details are as follows ： Catalog  /var/www/html/media/chunks/ There are many temporary files in , Need to delete , But if you delete it manually , It's going to be very slow , First , So let's see 3 What documents were there days ago .
The order is as follows ：

find /var/www/html/media/chunks -mtime +3 -name "*.*"

The screenshot of the query result is as follows ： 

I made a rough calculation , About a thousand .
If you delete it manually , It is estimated to wait until the end of time .

solve

Since it is necessary to delete expired files according to time , Then we must know some concepts related to time . There are three information about the time of the file ：atime、mtime、ctime, They mean, respectively ： Last visit time （access time）、 Last changed （modify time） And the latest status change time （change time）. Based on our demands , Obviously , I need to use mtime Time .
Let's take a look at the specific forms of these three times through an example ：

Okay , Now that it is clear that you need to use mtime Time parameters , Let's see how to use this command parameter .

1. Mode one

find . -mtime n 

among ,n Is the number , It means in the current directory n Days ago “ In a day ” A file with changed content .

2. Mode two

find . -mtime +n

among ,n Is the number , It means in the current directory n Days ago （ Not included n The day itself ） The file name of the changed content .

3. Mode three

find . -mtime -n

among ,n Is the number , It means in the current directory n Within days （ contain n The day itself ） The file name of the changed content .
Last , Understand more vividly through a picture n The actual meaning of ：

Okay , Now you can do it directly ：

find /var/www/html/media/chunks -mtime +3 -name "*.*" -exec rm -Rf {} \;

The above command is used to delete all the files queried three days ago .
Let's execute the first query command , I found that the files have been deleted , The screenshot is as follows ：

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Author's brief introduction ： Hello everyone , I am a Data-Mining（liuzhen007）, Is a typical audio and video technology enthusiast , Before and after working in traditional radio and television giants and audio and video internet companies , Rich experience in audio and video live and on demand , Yes WebRTC、FFmpeg and Electron Have a very deep understanding of , official account ： Play with audio and video . It's also CSDN Blogger 、 Huawei cloud sharing expert （ Co creation editor ）、InfoQ Signed on , Welcome to follow me and share more dry goods ！