Setting Cron job to delete file after 24 hours

问题

I read all the related questions and was unable to understand them. I am using Plesk CPanel to set cron job as it was advised by everyone.

I want to delete all files from a folder after 24 hours. Assume that I have to delete it after every 2 mins (So I can check its working or not).

I have two options:

Either run a PHP file that deletes all files after 24 hours using a cron job
Use the cron job command `rm` to delete all the files

I tried both ways and was unable to get my task completed.

Here is the pic of cpanel scheduled task:

http://i41.tinypic.com/2n0tsfs.png

I want to delete files from folder var/www/example.com/public/js/complied. All files inside this complied folder should be deleted. I don't know which to write in Command textfield.

Should I use the following command?

rm /var/www/example.com/public/js/compiled/*.*

Or should I execute a php file?

env php -q/var/www/example.com/public/js/cron.php

The source code of this Cron.php is:

<?php
$dir = "compiled"; // directory name



foreach (scandir($dir) as $item) {
    if ($item == '.' || $item == '..')
        continue;

        unlink($dir.DIRECTORY_SEPARATOR.$item);
        echo "All files deleted";
    }   
//rmdir($dir);

?>

I have tested this code and it works fine.

Thanks in advance.

回答1:

I use this in a shell script...

find /some/path -mtime +7 -exec rm {} \; # delete > 7 days old

回答2:

If you have access to your Server or SSH, you can simply add it to your crontab.

In your SSH just type

crontab -e

you will see a list of cron jobs on it, just append this line of code to your cronjob:

0 10 * * * rm -rf /var/www/example.com/public/js/compiled/*

The code above means that every 10am in the morning you are removing all the files in the path you provide. Please refer to this link for more info about Cron: http://en.wikipedia.org/wiki/Cron

回答3:

it worked for me to delete in once a day

0 0 * * * rm -rf /home/user/public_html/folder

if you want to remove everything in this folder, but leave the folder itself:

0 0 * * * rm -f /home/user/public_html/folder/*

回答4:

To optimize MrCleanX' solution a bit, use xargs:

find /some/path -type f -mtime +7 -print0 | xargs -0 --no-run-if-empty rm

Instead of calling rm for each file to delete, xargs packs many files together to a single call to rm

The -print0 and -0 stuff is to make both find and xargs using NULL terminated strings, which is necessary to handle file names with space and other interesting chars in their names.

来源：https://stackoverflow.com/questions/16325350/setting-cron-job-to-delete-file-after-24-hours

标签

php

cron

crontab

cron-task