Using CRON jobs to visit url?
LinuxWeb ApplicationsWebCpanelCron TaskLinux Problem Overview
I have a web application that has to perform a repeated tasks, Sending messages and alerts, I, already, use a script page do those tasks when it loaded in the browser i.e http://example.com/tasks.php and I included it by the mean of iframe in every page of my web application.
Now I want to change this to use CRON jobs because the first approach may leads to jam performance, So How could I make a CRON job that visits http://example.com/tasks.php. However, I don't want this CRON job creating output files such as day.*!
I host the application on shared hosting service that permits CRON jobs via cPanel.
Linux Solutions
Solution 1 - Linux
* * * * * 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)
Solution 2 - Linux
You don't need the redirection, use only
* * * * * wget -qO /dev/null http://yoursite.com/tasks.php
Solution 3 - Linux
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.
Solution 4 - Linux
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.
Solution 5 - Linux
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
Solution 6 - Linux
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.
Solution 7 - Linux
You can use this command:
links https://www.honeymovies.com
Solution 8 - Linux
U can try this :-
wget -q -O - http://www.example.com/ >/dev/null 2>&1
Solution 9 - Linux
* * * * * 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
Solution 10 - Linux
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.