使用 CRON 作业访问网址？

我有一个网络应用程序，必须执行一个重复的任务，发送消息和警报，我，已经，使用脚本页面做这些任务时，它加载在浏览器即 http://example.com/tasks.php和我包括它的意思是，在我的网络应用程序的每一个页面。

现在，我想改变这个使用 CRON 作业，因为第一种方法可能会导致拥塞性能，所以我怎样才能使一个访问 http://example.com/tasks.php的 CRON 作业。但是，我不希望这个 CRON 作业创建输出文件，如天。*！

我在共享主机服务上托管应用程序，该服务允许通过 cPanel 进行 CRON 作业。

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最佳答案 
* * * * * wget -O - http://yoursite.com/tasks.php >/dev/null 2>&1

That should work for you. Just have a wget script that loads the page.

Using -O - means that the output of the web request will be sent to STDOUT (standard output)

by adding >/dev/null we instruct standard output to be redirect to a black hole. by adding 2>&1 we instruct STDERR (errors) to also be sent to STDOUT, and thus all output will be sent to a blackhole. (so it will load the website, but never write a file anywhere)

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You don't need the redirection, use only

* * * * * wget -qO /dev/null http://yoursite.com/tasks.php
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You can also use the local commandline php-cli:

* * * * * php /local/root/path/to/tasks.php > /dev/null

It is faster and decrease load for your webserver.

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i use this commands

wget -q -O /dev/null "http://example.com/some/cron/job.php" > /dev/null 2>&1

Cron task:

* * * * * wget -q -O /dev/null "http://example.com/some/cron/job.php" > /dev/null 2>&1
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You can use curl as is in this thread

For the lazy:

*/5 * * * * curl --request GET 'http://exemple.com/path/check.php?param1=1'

This will be executed every 5 minutes.

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you can use this for url with parameters:

lynx -dump "http://vps-managed.com/tasks.php?code=23456"

lynx is available on all systems by default.

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You can use this command:

links https://www.honeymovies.com
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U can try this :-



wget -q -O - http://www.example.com/ >/dev/null 2>&1
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* * * * * wget --quiet https://example.com/file --output-document=/dev/null

I find --quiet clearer than -q, and --output-document=/dev/null clearer than -O - > /dev/null

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Here is simple example. you can use it like

wget -q -O - http://example.com/backup >/dev/null 2>&1

and in start you can add your option like (*****). Its up to your system requirements either you want to run it every minute or hours etc.

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For Cron job to work you just need to hit the url, without any output and without downloading anything.

I am using only the wget with this two parameters:

*/2 * * * * wget -q --spider https://example.com/

*/2 : run every 2 minutes

‘-q’ :Turn off Wget’s output.

--spider : When invoked with this option, Wget will behave as a Web spider, which means that it will not download the pages, just check that they are there.

Documentation: https://www.gnu.org/software/wget/manual/wget.pdf


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