Cron不执行

Question

in crontab e

0 3 * * * /usr/bin/php /var/www/domain.com/backUp.php

in backUp.php

<?php
$dbFile = '/var/www/domain.com/db-cron-backup/tb_db_backup'.date('H').date('d').date('Y').sql.gz';
$dbHost = 'localhost'; // Database Host
$dbUser = 'username'; // Database Username
$dbPass = 'password'; // Database Password
exec( 'mysqldump --host="'.$dbHost.'" --user="'.$dbUser.'" --password="'.$dbPass.'" --databases "db_name" | gzip > "'.$dbFile.'"' );
?>

But nothing happens?

Permisions for db-cron-backup

drwxrwxrwx 2 root root 4096 Nov 10 15:01 db-cron-backup

Answer 1

如果您希望它每三个小时运行一次，则将cron设置为

0 */3 * * *