cron is a task scheduler based on clock time that runs on Linux-based machines.

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2
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1answer
19 views

Scheduled tasks / cron on Haiku?

It doesn't seem to be called cron on Haiku and I don't see anything in Preferences or Applications as of the latest nightly. (Where) is this functionality in Haiku / what is it called? (I also ...
3
votes
2answers
939 views

Shell script running from cron not running python

I have python program, I want to run it everyday with different variable (on CentOS server): #!/bin/sh /usr/bin/python /root/testing/test.py --variables /root/testing/daily/test1.txt while [ $? != 0 ...
0
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1answer
220 views

Cron unable to run shell script

I have been trying to get a shell script to run for hours using cron to no avail. I am trying to have the following bash script run every minute #!/bin/bash ...
0
votes
1answer
127 views

Export org agenda views periodically in Emacs

To export org agenda views in a text file for further processing, I run (org-batch-store-agenda-views) periodically as an Emacs batch job run by cron. Because there is some overhead in starting an ...
0
votes
1answer
318 views

Rsyslog hangs processes

I have a quite odd problem. At random times my dovecot daemon dies and I cannot receive/send emails while the host is still up. When trying to SSH into the server to see what happened, I discover that ...
3
votes
2answers
734 views

Will cron.daily wait for jobs to finish before starting the next one?

This page http://wiki.ci.uchicago.edu/I2U2/WebalizerConfiguration suggests renaming /etc/cron.daily/logrotate so it comes after /etc/cron.daily/webalizer - webalizer should be done before logrotate ...
0
votes
1answer
70 views

How do I monitor resource usage of crond php scripts?

I am using a VPS which is running 5 php scripts on a minute by minute basis using cron. Each script, itself, loops to execute a mysql query then sleeps for between 5 and 15 seconds. They all ...
1
vote
1answer
320 views

Ubuntu start Node.js server and open Chrome in kiosk mode

I'd like for a computer to immediately start a Node.js application on boot. I'd then like Chrome to open in Kiosk mode, but only after the server has been started. Looking on the Ubuntu Stack ...
0
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0answers
34 views

Cpanel cron timing issue

I am running a cpanel server. I set a cron task to run every minute. So in my cron tab I set like below- * * * * * php /path_to_script >/dev/null 2>&1 Initially the task added ...
0
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0answers
52 views

Rsync delete issue

I implemented rsync to backup the data from the server to my local machine,and done it regularly by cron. It works fine but yesterday it deletes the files from the folders on my local machine but on ...
0
votes
1answer
2k views

Setting Up a Python Cron Job

I hope you guys can help. I've never set up a cron job before but would like to run a daily Python script at 5am on my server. I'm using hosting from CrazyDomains.com.au (Linux server) and can't find ...
0
votes
1answer
229 views

crontab a bash script that is copying certain files

First I would like to say that I am terrible with scripting so this has been a true challenge for me. Any input would be great! I would like to automate an sftp transfer every 24h. If I am lucky in ...
0
votes
1answer
51 views

Crontab stopped unexpectedly

I have following entries in the crontab: 0 0 * * * /mnt/voylla-production/releases/20131111011431/script/rubber cron --task util:rotate_logs ...
0
votes
3answers
2k views

SCP not working in CRON job, only manually

I have a script on a remote server (bServer) which SSH's to a central server (let's call it cServer) and kicks a script which further SSH's to 2 other servers (server13 / server14). A script is run on ...
0
votes
1answer
383 views

How to configure in crontab with condition statement for checks

We like to monitor the NAS storage mounted on a Linux box. We only like to be notified via mail when the usage exceeds a certain number, say 80. We have only seen in Linux books where most of them ...
1
vote
2answers
330 views

Run Crontab anytime after 4pm

I am trying to run a script through crontab in osx 10.8.5 that will run at 4:30. 30 16 * * 1-5 /Library/Frameworks/Python.framework/Versions/2.7/bin/python /Users/lego90511/PycharmProjects/Stock\ ...
3
votes
2answers
4k views

Why doesn't my cron.d per minute job run?

I have thrown a bunch of darts trying to get a python script of mine to execute every minute. So I thought I'd simplify it to just do the "simplest thing that could could possibly work" once per ...
2
votes
1answer
100 views

How do I make git fetch ignore my private key?

I'm writing a cronjob that will git fetch. I have a private key that I often use for authenticated git things (like github) which has a passphrase on it, but this specific git fetch doesn't need the ...
0
votes
1answer
132 views

Automated git push attempt does not work - authentication issue

I'm trying to automate a very periodic git add/commit/push cycle using a shell script and cron under OS X 10.8.5. The script is as basic as one would expect it to be: cd /my/directory git add . git ...
0
votes
1answer
485 views

How to delete all files inside public_ftp folder and its sub folders which are older than X days using Cron Job?

I want a way to run Cron job (automatically daily) on server that will delete all files only (not folders) which are older than X days from today's date, in the public_ftp folder and all its sub ...
1
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0answers
84 views

Ncat throws errors while being run from crontab

I have a simple script set up on my OpenWrt box to check if one of the computers in a local network is streaming, and if it does, the script starts wget | madplay to play the stream. Script works ...
0
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0answers
61 views

How do I launch an hourly version of anacron?

I have a cron job (system update) that fires off every hour. However, I would like it to be reset every time the machine resumes from standby or hibernation. The command is already launched at each ...
3
votes
2answers
4k views

BASH - merge directories when using mv

I just started using BASH, so I can move all contents of a directory to another. But the issue is, I was expecting it to merge the directories. I am using cron job to run this script. #!/bin/bash ...
1
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0answers
25 views

crontab does not lauch [duplicate]

I am trying to launch a cron job every hour (an interactive system upgrade). The code that does the actual update ( a no-password sudo yum update) is in my .zshrc (I use zsh as my shell). To launch ...
0
votes
1answer
170 views

Ubuntu — Application global environment variables

So I have an application I am deploying to an Ubuntu 12 server. My application has several "parts" to it: There's a web server, run as part of an upstart script There are cron jobs There are ...
0
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0answers
234 views

Crontab command set not working

I'm trying to set up crontab to run a shell script, but for some reason, the script doesn't get executed. I'm on system with OS X 10.8.5. crontab file 0 12 * * 1 /absolute/path/to/myscript.sh 0 15 * ...
0
votes
1answer
62 views

How do I prevent anacron from running certain scripts?

I am running RHEL5 and software RAID (mdadm). Currently I allow the 99-raid-check weekly cron script to run at the normal time (early Sunday morning). However, if the system is off during that time it ...
1
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2answers
504 views

Automate python script mac

I want to set up a python script to run every weekday(not sunday and saturday) on my mac OSX 10.8.4. From what I have found so far, it looks like I want to use cron. But before I do something horrible ...
0
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2answers
289 views

Script for CRON (FTP get files EVERY MINUTE)

I want to create a script that must run with a CRON every minute (Q: Is it wise to run CRON FTP/wget every minute?) compares local directory with remote directory (Q: do I use FTP or wget and how ...
0
votes
1answer
143 views

Asterisk cron page/intercom script

Wanting to send a page/intercom message to a group of VoIP phones as specified intervals. Is it possible to schedule asterisk to send a page/intercom via cron or some other method? What would be the ...
0
votes
3answers
685 views

Linux crontab script to “mysqldump | gzip” gives wrong filesize

I have a bin/bash script that mysqldumps my sql database, when I run it everything goes well with filesize=3MB, but when crontab(as sudo) runs the script then the filesize is 20B script #!/bin/bash ...
0
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1answer
298 views

Cron fails the script command

I am trying to capture a picture with my webcam and I need to log the output to check for errors, but cron is failing at this. I am able to do this from terminal, but cron running it doesn't work. ...
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0answers
84 views

setting a cronjob in IST time [closed]

I am trying to set a cronjob run in a different timezone..i have goolged a lot and found editing /etc/default/cron is the way to go...but this file is deprecated and I see the following message,so I ...
0
votes
1answer
962 views

Can I use cron or launchd to run a bash script without being logged in?

I'd like to have a simple bash script run (regardless of whether anyone is logged in or not) akin to putting it in /etc/cron.daily/ on Linux, but on Mac OS X Mountain Lion 10.8.4. If it's possible, ...
0
votes
1answer
92 views

Reset user password on reboot

Humor me for a moment because I'm aware that this is a terrible idea. I'm trying to devise a way to reset a user's password each time the computer is rebooted. So far, I've tried the following to no ...
0
votes
3answers
934 views

How to schedule/unschedule cron job from shell

I have a ubuntu server where I put my application core. It's a jar that needs to be always listening for requests. I made a script to run it with the correct parameters. The scenario is similar to ...
3
votes
1answer
1k views

Debian cron.daily messages

Every week, I seem to be getting the following two Cron messages: /etc/cron.daily/logrotate: gzip: stdin: file size changed while zipping /etc/cron.daily/spamassassin: channel: no ...
0
votes
3answers
512 views

Run crontab non-interactively from script

I would like to schedule some tasks on remote servers by script but am having an issue with crontab expecting to be run interactively the first time. As far as I understand crontab needs to be ...
1
vote
2answers
3k views

How to auto commit to my git repository using cron?

I look into a lot of answers about this subject, but something is wrong here, let me explain. I create this script, to make my cron cleaner :) #!/bin/bash cd ...
0
votes
2answers
1k views

apache crontab not executing

I use cron to execute some php scripts (owncloud background tasks etc). My server runs nginx and PHP via php-fpm, which by default runs PHP processes under the apache user, the only user with write ...
0
votes
3answers
212 views

Automatically Create text file of folder contents

I have a set of directories that have files in them for use with LiquidSoap for use with IceCast2 Currently, every time I remove a file or add a file, I have to edit the txt file listing the mp3s to ...
1
vote
1answer
36 views

Persistent outgoing connection from firewalled Linux box

There's a great method to allowing one to access a machine behind a firewall by creating an outgoing listening connection: Remote into Linux workstation behind a firewall My question is, what's the ...
1
vote
2answers
534 views

Script for transferring files over the internet via a Cron task

I want to add a bit to a backup script that will transfer a file to another server, over the internet. My cron currently does a pg_dump of a database into a file on the local machine, I want to then ...
-2
votes
1answer
577 views

changing ownership of files within a bash script

I have this bash script which outputs the first two files as owned by user, and the next three as owned by root: ################################################## # Variables NUM="6" #number of ...
2
votes
1answer
191 views

Running Redshift commands from crontab, doesn't work

About redshift: Redshift adjusts the color temperature of your screen according to your surroundings. This may help your eyes hurt less if you are working in front of the screen at night. A typical ...
5
votes
1answer
259 views

Why does cron only offer minute granularity?

It feels like there are use cases for things you'd want to run once every 5 seconds, twice a minute, etc, but these are impossible with cron. Why hasn't second-level cron granularity been built into ...
0
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2answers
843 views

How to setup muliple cron job every 3 hours but not simultaenously?

I need to run cron jobs during the following times: 1st job: 1PM 4PM 7PM etc.. 2nd job: 1:15PM 4:15PM 7:15PM etc.. 3nd job: 1:30PM 4:30PM 7:30PM etc.. As you can see each job run every 3 hours but ...
0
votes
1answer
1k views

ntpdate command not found [only when using with cron]

I have a linux machine with ntpdate installed and it is working when i run it from my ssh terminal or from a shell script manually. However , when i add the shell script to crontab i get the error ...
0
votes
1answer
162 views

Does cron still run for disabled users?

If a user is disabled (with passwd -l user) on a server, are their cron jobs also disabled? Or would they still run?
2
votes
2answers
881 views

Working with git via crontab

I have the following shell script #!/bin/bash REPODIR=$HOME/work/repository/ cd $REPODIR var=`git fetch --dry-run 2>&1` echo $var > $HOME/error.txt I want to run my script every minute, ...