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
2
votes
1 answer
MySQL - Change field value after X minutes of inactivity
I am trying to find a way to have a cronjob which checks how long it has passed since the last update of a row, if it is more than X, then change field 'ACTIVE' to 'FALSE'.
I have a robot which updates its current IP and add the timestamp.
From the…
N3sh
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2
votes
2 answers
Google appengine Cron jobs
Can we specify Cron jobs dynamically? I want to define a task to occur at some time in future .How can I achieve that functionality? This is need to be done in Google App Engine. The ony way that I have found is to do polling
Anuranjit Maindola
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2
votes
3 answers
Cron won't execute ruby script
I have a cron job set to execute a shell script telling the server to run a single ruby command (jekyll build --source /path/to/source/dir --destination /path/to/dest/dir) 2 minutes past every hour. The script executes just fine when I run it via…
John R
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2
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2 answers
How to use perl to modify crontab?
How could I append a cron task in crontab via a perl script?
I thought of the following:
#!/usr/bin/perl
use strict;
use warnings;
`crontab<
Cratylus
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0 answers
cron job 2nd line doesn't execute
I have these 2 lines in cron tab.
The 1st command executes but the 2nd one doesn't. It just doesn't run. No traces in log. I have a new line (enter) at the end. I have restarted the cron service also.
The path is correct, I can run it as shell…
bomaboom
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2
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0 answers
Scheduling cronjobs at specified time
I have scheduled some jobs in crontab which are to be run one by one, at some specific time. My script for crontab is :
15 10 * * * /Users/sri/files/BatchFF.sh
45 11 * * * /Users/sri/files/BatchGC.sh
15 13 * * * /Users/sri/files/Batch_GUI_FF.sh
45…
Blazing Sri
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2
votes
1 answer
Creating a cron job to run at hour mark and half hour mark for specific hours on specific day of week
I need to setup cron jobs so that they run at
1800, 1830, 1900, 1930, 2000, 2030, 2100 on every Monday and Thursday.
So far I've managed to get to this:
00,30 18-21 * * 1,4
Is this the right way of doing it? If yes, will it run on 21:30 as well?
Hassan Javeed
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2
votes
4 answers
crontab issue when using exec php script?
I am using elementaryOS (base on ubuntu)
When I run commaand line:
kn3l@kn3l:/var/www/cronjob$
25 15 * * * /var/www/cronjob/helloworld.php > /var/www/cronjob/cron.log
and it works for crontab with terminal command line.
BUT When I using PHP with…
tree em
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votes
1 answer
Cronjob firing at wrong schedule.
i have two cronjobs, i want to run the two cronjobs at a small gap of ten minutes. once in two days, at 0100 hours and 0110 hours
this is what iam trying.
0 1 */2 * * job1.sh
10 1 */2 * * job2.sh
job1 is not working as expected. it runs twice…
sk27
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2
votes
1 answer
Google App Engine Cron schedule and length
What is the min and max of cron schedule? And how long the cron can run? 24 hours?
The below code work with schedule is 1 minutes.
cron:
- description: test
url: /test
schedule: every 1 minutes
But I want to make it 30…
John
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2
votes
1 answer
Shell script runs from CLI but not from Crontab
I have a shell script that goes through every JSon file in a directory and uses phantomJS to create a highchart png.
The problem comes when scheduling a cron task to run this script - (Initially I used inotifywait but got the same error).
The…
HelloWorld
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2
votes
5 answers
Which is the best way to run a cron job every 30 seconds?
I would like to run a cron job every 30 seconds, but cron does not allow scheduling jobs more frequently than once a minute.
Which is the best way to run a cron job every 30 seconds?
flaab
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2 answers
Phantom cron job after installing ssmtp for sending e-mails
Today after installing ssmtp in order to send e-mails using the terminal, I got every half hour this e-mails:
from: root @gmail.com
to: root
date: Wed, Sep 12, 2012 at 2:09 PM
subject: Cron [ -x…
rfc1484
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2
votes
1 answer
How do we set cron job in social engine?
I am working on a social engine project and it has a module through wich an automatic email is send to users every morning. I have already created an action on the controller of the module which will send email to users. I would like to set it up…
Varada
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2
votes
1 answer
PHP/Symfony: Create Application Context for Cron/Task
I have a long operation that I can no longer run from the UI as it exceeds the maximum execution time as well as memory limit. I am fairly aware of how I can set tasks in a table, and have a cron execute a sfTask that finishes pending tasks.
Can…
Prasad
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