cron-task is a task (command or shell script) executed periodically at certain times or dates by the cron scheduler.
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Questions tagged [cron-task]
925 questions
572
votes
12 answers
Restarting cron after changing crontab file?
Do I have to restart cron after changing the crontable file?
bArmageddon
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172
votes
16 answers
AWS Lambda Scheduled Tasks
Amazon announced AWS Lambda (http://aws.amazon.com/lambda/).
The product description includes:
Scheduled Tasks
AWS Lambda functions can be triggered by external event timers, so
functions can be run during regularly scheduled maintenance times…
Nathan H
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124
votes
7 answers
How to run a cronjob every X minutes?
I'm running a PHP script in a cronjob and I want to send emails every 5 minutes
My current (crontab) cronjob:
10 * * * * /usr/bin/php /mydomain.in/cromail.php > /dev/null 2>&1
The cronmail.php is as follows:
Savan Paun
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103
votes
14 answers
Scheduling Python Script to run every hour accurately
Before I ask, Cron Jobs and Task Scheduler will be my last options, this script will be used across Windows and Linux and I'd prefer to have a coded out method of doing this than leaving this to the end user to complete.
Is there a library for…
sunshinekitty
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88
votes
11 answers
Using CRON jobs to visit url?
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…
SaidbakR
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54
votes
4 answers
Append current date to the filename via Cron?
I've created a Cron task at my webhost to daily backup my database and I would like it to append the current date to the filename.
My Cron job looks like this
mysqldump -u username -pPassword db_name > www/db_backup/db_backup+date%d%m%y.sql
But the…
Emil Devantie Brockdorff
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46
votes
2 answers
How to create cron statement to run for multiple hours
I need a cron statement to run for few hours eg 1-8 then 10-15.
In this case will the following statement work,
0 1-8,10-15 * * *
If not can anyone help me?
Thanks in advance,
Gnik
Gnik
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35
votes
4 answers
Difference between cron, crontab, and cronjob?
Technically speaking, what is the difference between a cron, crontab, and cronjob?
From what I can gather, cron is the utility on the server, crontab is a file which contains the time intervals and commands, and cronjob is the actual command (or…
Leo Galleguillos
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31
votes
2 answers
Trigger hourly build from scripted Jenkinsfile
Is there a way to trigger a Jenkins job to run every hour using the Jenkinsfile scripted pipeline syntax?
I have seen examples using the declarative syntax, but none using the pipeline syntax.
Declarative Syntax Example
pipeline {
agent any
…
Alex
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26
votes
2 answers
linux difference between "sudo crontab -e" and just "crontab -e"
I noticed that when I typed sudo crontab -e I dont see my cron command, but when I do only crontab -e there is my command.
Is there a difference between the 2? If there is, where should I put my cron command, should it be in sudo or without the…
PinoyStackOverflower
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25
votes
8 answers
Scrapy crawler in Cron job
I want to execute my scrapy crawler from cron job .
i create bash file getdata.sh where scrapy project is located with it's spiders
#!/bin/bash
cd /myfolder/crawlers/
scrapy crawl my_spider_name
My crontab looks like this , I want to execute it in…
Beka Tomashvili
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25
votes
3 answers
How to create a cron task in Symfony2
I have a little question, how create a simple cron task who call some service action in Symfony, who could be executed automatically each night ?
user2178964
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20
votes
1 answer
Can't install CRON job
When I try installing my Cron job I get the following error:
"crontab.txt":8: premature EOF errors in crontab file, can't install
Yogzzz
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18
votes
5 answers
Crontab is not running local/bin/ script. Catalina, BigSur
I just have started to use crontab and have some problems with it. I have already read some posts about how to use it on macOS, but it still not working.
So,
I write crontab -e, then edit it to
*/1 * * * * cliclick -w 1 m:3,3 (for example) - which…
0x0000dead
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17
votes
6 answers
How to design a distributed job scheduler?
I want to design a job scheduler cluster, which contains several hosts to do cron job scheduling. For example, a job which needs run every 5 minutes is submitted to the cluster, the cluster should point out which host to fire next run, making…
coderz
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