如何每天在Ubuntu操作系统上使用cron作业运行php脚本 [英] how to run a php script daily with the cron job on Ubuntu os

问题描述

运行命令我正在使用ubuntu 12和lamp服务器。我想每1小时运行一次php脚本。我创建了一个crontab来执行此操作，如果我使用命令crontab -l检查了我的cron列表，则显示为

command to runI am using ubuntu 12 and lamp server . I want to run a php script after every 1 hour . i have create a crontab to execute this and if i check my cron list with command crontab -l it is showing like this

# Edit this file to introduce tasks to be run by cron.
0 * * * * /usr/bin/php5 -q /var/www/cronjobs/cron1.php

# Each task to run has to be defined through a single line
# indicating with different fields when the task will be run
# and what command to run for the task
# 
# To define the time you can provide concrete values for
# minute (m), hour (h), day of month (dom), month (mon),
# and day of week (dow) or use '*' in these fields (for 'any').# 
# Notice that tasks will be started based on the cron's system
# daemon's notion of time and timezones.
# 
# Output of the crontab jobs (including errors) is sent through
# email to the user the crontab file belongs to (unless redirected).
# 
# For example, you can run a backup of all your user accounts
# at 5 a.m every week with:
# 0 5 * * 1 tar -zcf /var/backups/home.tgz /home/
# 
# For more information see the manual pages of crontab(5) and cron(8)
# 
# m h  dom mon dow   command

这是我的php脚本

0 * * * * /usr/bin/php5 -q /var/www/cronjobs/cron1.php

但未执行

我如何检查为什么它不起作用，请帮助

how can i check why it is not working , please help

推荐答案

要确定cron出了什么问题，可以在终端中键入以下命令：

To find out what is wrong with your cron you can type the following command in your terminal:

grep -i "cron1.php" /var/log/syslog

系统日志包含所有cron日志。

The syslog contains all log of crons.

尝试运行代码 / usr / bin / php5 -q / var / www /终端上的cronjobs / cron1.php 来检查是否存在错误。

Try run the code /usr/bin/php5 -q /var/www/cronjobs/cron1.php on terminal to check if there are errors.

您还可以重做将所有错误纠正为文件：

You can also redirect all errors to a file:

0 * * * * /usr/bin/php5 -q /var/www/cronjobs/cron1.php 2> /tmp/errorCron1.txt

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