php 如何在 AWS EC2 服务器中编写 cron 作业
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How to write cron job in AWS EC2 server
提问by fedorqui 'SO stop harming'
I've created a cron job in AWS EC2 but it is not working.
我在 AWS EC2 中创建了一个 cron 作业,但它不起作用。
I followed below steps to create cron tab:
我按照以下步骤创建 cron 选项卡:
- Step 1: I logged in to AWS EC2 Instace
- step 2:
crontab -e - Step 3: Insert mode
- Step 4: I entered
* * * * * php/var/www/html/welcome.php(To run every min.) - Step 5:
:wq
- 第 1 步:我登录到 AWS EC2 实例
- 第2步:
crontab -e - 第 3 步:插入模式
- 第 4 步:我输入
* * * * * php/var/www/html/welcome.php(每分钟运行一次) - 第 5 步:
:wq
Cron tab is created but not running.
Cron 选项卡已创建但未运行。
Please can you any one help me if is there any PHP script means please provide me. Do I need to give spaces between every star?
如果有任何PHP脚本意味着请提供我,请您能帮助我。我需要在每颗星星之间留出空格吗?
回答by fedorqui 'SO stop harming'
First of all, you need to put an space between phpand /var:
首先,您需要在php和之间放置一个空格/var:
From
从
* * * * * php/var/www/html/welcome.php
to
到
* * * * * php /var/www/html/welcome.php
^
Then, you'd better use /bin/phpinstead of just php. To determine where the phpexecutable is located, type which phpin your console, it will give you the file path. So it will become something like this:
那么,你最好使用/bin/php而不仅仅是php. 要确定php可执行文件所在的位置,请which php在您的控制台中键入,它将为您提供文件路径。所以它会变成这样:
* * * * * /bin/php /var/www/html/welcome.php
^^^^^^^^
More things:
更多的东西:
- check if crontab is saved properly? Type
crontab -l. Your new crontab line should be there. - is the script exactly in this dir? Try
ls -l /var/www/html/welcome.php. - is the script executing if you do from console? Try
/bin/php var/www/html/welcome.phpto see if it is a script or crontab problem. - does the script have executing mode? Try
chmod 755 /var/www/html/welcome.php
- 检查 crontab 是否正确保存?键入
crontab -l。您的新 crontab 行应该在那里。 - 脚本正好在这个目录中吗?试试
ls -l /var/www/html/welcome.php。 - 如果从控制台执行,脚本是否正在执行?试试看
/bin/php var/www/html/welcome.php是脚本问题还是crontab问题。 - 脚本有执行模式吗?尝试
chmod 755 /var/www/html/welcome.php
Keep us updated so we can find what can be causing the error.
让我们保持最新状态,以便我们可以找到导致错误的原因。
回答by rrbathula
May be a too late but anyways if you intend to run the script every minute the command should probably be
可能为时已晚,但无论如何,如果您打算每分钟运行一次脚本,则命令可能应该是
* * * * * php /var/www/html/welcome.php
回答by Fergus
Running cron on EC2 is not any different from running on any *nix server - as far as I know. I would check of the system messages for any errors. You can also redirect stderr/stdout to a file as in
在 EC2 上运行 cron 与在任何 *nix 服务器上运行没有什么不同——据我所知。我会检查系统消息是否有任何错误。您还可以将 stderr/stdout 重定向到文件,如
* * * * * <your script> >> /var/tmp/out.log 2>&1
and check for any issues for starters.
并检查初学者的任何问题。

