如何在 Ubuntu 操作系统上每天使用 cron 作业运行 php 脚本
要运行的命令我正在使用 ubuntu 12 和灯服务器.我想每 1 小时后运行一个 php 脚本.我已经创建了一个 crontab 来执行它，如果我使用命令 crontab -l 检查我的 cron 列表，它会显示如下
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
但它没有执行
我如何检查它为什么不起作用，请帮忙
how can i check why it is not working , please help
推荐答案
要找出您的 cron 有什么问题，您可以在终端中输入以下命令:
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.
尝试在终端上运行代码 /usr/bin/php5 -q/var/www/cronjobs/cron1.php 以检查是否有错误.
Try run the code /usr/bin/php5 -q /var/www/cronjobs/cron1.php on terminal to check if there are errors.
您还可以将所有错误重定向到一个文件:
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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