Cron is used to execute scheduled commands. It acts as a task scheduler on Linux and UNIX systems which will execute commands at specified times set by the user. Cron has a great deal of customization and is often used on server environments where common tasks are run on a regular basis.

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Does ubuntu support “@reboot” in crontab

Does ubuntu support "@reboot" in crontab ? I find documentation suggesting it is supported, but web chatter asserts it is not. I cannot make the @reboot section work. The "after midnight" section ...
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55 views

Tiger: `rtm` is listening on socket XXXX

On my Ubuntu serve 12.04 LTS, Tiger is reporting a lot of stuffs like this: OLD: --WARN-- [lin002i] The process `rtm' is listening on socket 60404 (UDP) on every interface. NEW: --WARN-- [lin002i] ...
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54 views

Can I set up a cron job on Ubuntu Phone

I've been looking around, and can't find if Ubuntu Touch can run cron. So my question is: Can it? Also does it have a standard set of bash utils installed?
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120 views

Need to setup email notification when system starts and shutdown

I would like to have the system send me a email notification everrytime the system starts or shuts down. I am currently running Ubuntu 12.10 I found this tutorial but I couldn't make it to work.
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539 views

Why doesn't duply work when set as a cron job?

I have a problem with a cron job which starts but doesn't complete. Running the command manually works fine. I already read the page about cron issues and solutions here on AskUbuntu, tried the ...
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12 views

Which tasks in “Scheduled Tasks” (gnome-schedule) use anacron versus cron?

I am trying to run a command once a day, but my machine is not always on. anacron says it's meant for such purposes, but I prefer to use the Gnome Scheduled Tasks GUI program. If I schedule a task to ...
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26 views

syslog time is not matching cron string setup

I am running many cronjobs in my server. When I was checking the syslog file to see the cron timing, it's completely not matching. Can someone help me to understand. syslog May 23 00:00:01 xxxxxx ...
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17 views

Vixiecron doesn't allow disabling of emails, how can i disable cron emails globally?

Vixiecron doesn't allow disabling of emails, how can i disable cron emails globally? Every time the cron runs there are some sendmail processes being created which take our machine to huge high ...
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14 views

Any reason why Ubuntu's man page on crontab(5) is less informative?

Why is the man page for crontab(5) at manpages.ubuntu.com less informative than corresponding man page at linux.die.net? Compare The "sixth" field (the rest of the line) specifies the command to ...
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37 views

Make CronTab not asking for id_rsa keyword when running in terminal

I like to do some git pull inside a script and see see output of it. So I made up this cronjob to test: DISPLAY=:0 * * * * * mike /usr/bin/gnome-terminal -x zsh -c "/var/www/up.sh; zsh" ...
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42 views

Configuring logrotate without root access (per user log rotation)

How best can logrotate be configured, on a per-user basis, to rotate files in the home directory of the user, under control of a per-user 'crontab -e'?
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60 views

Using a NAS as a collective dump, with symlinks for whoever uploaded each file

I have a local machine that was sitting around & doing very little, so I decided to turn it into a NAS (Network Attached Storage) machine, with a 40GB disk for Ubuntu (13.10), a 160GB disk that's ...
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93 views

Why won't cron run my sh script?

Used gnome-schedule to create a script to set my headset as the fallback audio device because it keeps unsetting it when the headset gets disconnected or pc goes into sleep mode. Anyway, crontab is ...
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481 views

Ubuntu 12.04: Crontab stopped running/Curl and cron blocking?

I have created a number of PHP daemons in the past and my general procedure is this: Run a cron job every minute to start up a new instance of the daemon Create a log file Check to see if enough ...
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0answers
121 views

Can't stop LAMP graceful restart

I just got my first LAMP up and running, everything works fine except that my server is restarting itself every sunday. When I read the logs I see "Graceful restart requested, doing restart" Should ...
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34 views

crontab command in the 2nd line doesn't run

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 ...
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65 views

Backup regimen - is this plan any good?

I have a desktop that has some valuable personal and financial records, photos, etc. I installed a second drive formatted ext3 called 'internalbackup'. I've been using a variety of backup programs, ...
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56 views

Why are alerts still coming if a job is commented out in cron?

In cron entry I have disabled the ignite recovery tape backup. But still we are getting alerts as: The action /opt/osit/omniback/bin/check_make_recovery.pl failed Crontab entry : # Ignite ...
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124 views

How to trigger anacron start if USB drive connected

There is a script in /usr/lib/pm-utils/power.d/anacron which restarts anacron if leptops are connected to power. Is it possible to have a similar script restart anacron if (a certain) USB-drive is ...
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75 views

Need to send a simple .txt file to a couple email addresses

ive been trying to get this to work all night. mutt doesnt seem to work and I cant install mail or mailx packages because apt-get gives me errors about them not having installation candidate. What I ...
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16 views

unwanted periodical restarts

A couple of weeks ago, I thought I solved the cron job problem which is responsible for unwanted periodical restarts in 60 mins. I used acpi=off line for this. But now the problem occurs again with ...
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4 views

Teradata BTEQ on ubuntu

I am trying to set up a cron job server utilizing BTEQ to run our daily builds. I installed pretty much everything I could find on the TD developers site via alien as the packages are rpm, but I didnt ...
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11 views

What is the difference between postfix and mailsutils?

I am attempting to set up an AWS EC2 with a simple mailing service for my crontab. And I have postfix set up, but when I used the "mail" command it did not work. So I installed mailutils as ubuntu ...
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14 views

Doubt : locate command: reschedule to every 2 mins

Will mlocate cron scan complete file system in scheduled time? Or will it just merge databases whatever files/folders added between scheduled time? I am planning to reschedule mlocate cron job to ...
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28 views

Cron Doesn't run the job

I am trying to add a job to cron using sudo crontab -e Using * * * * * root /usr/bin/getmail doesn't work. Ubuntu version is trusty I get confirmation crontab : installing new crontab. I ...
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20 views

cron to email when a psql stops recording data

I have a PSQL setup and records data every 10 minute or less. The connection sometimes dies and it results is logging failure and I have no idea when that happens. I want to create a cron job to email ...
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17 views

Why is my server (12.04 LTS) catching up on a missed cronjob when woken over LAN?

... or what else is happening here? My homeserver running 12.04 LTS server is running on a wake/sleep schedule. I have a script "hibernate-starter" being run by root's crontab at specific times. The ...
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56 views

Full Automatic Scheduled Download in Lubuntu

As the Question Said,I want to schedule daily download at night -when I'm absent- I've doing this in past (windows xp) by using wake up feature in bios and in idm set schedule task and when arrived at ...
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277 views

node.js app runs from command line but gives errors when run from cron job on reboot on ubuntu 14.04 LTS

When starting my app manually using forever, it works fine. It runs on localhost:8080 and nginx does the routing. When using a cronjob my starter.sh script runs but in the forever log I get an error. ...
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76 views

Allow user to run programs as root without password. Would it be the correct solution to my problem?

I have a server which I need to be running certain programs permanently; I'm having problems with two of them and I'm not sure if the solution I've found would be the correct one, so I ask for opinion ...
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46 views

Starting services with custom xsession

I'm new to ubuntu. I've accomplished making chromium start at boot with xsessionrc file, but now I want to get a screenshot of the desktop every minute (which is just chromium basically). I've ...
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371 views

Ubuntu 14.04 kworker hogging cpu; fix didn't work

Fresh install of ubuntu 14.04 on a touchscreen Toshiba Satellite laptop with intel graphics. I tried to follow the fix here: Why does kworker cpu usage get so high? It didn't work; my problem seems ...
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63 views

PPTP won't connect from a cron command

I'm trying to work out why my VPN won't connect when the command is initiated from a cron triggered script when that same script and command otherwise work as expected. I have a remote server which ...
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0answers
25 views

crojob not recognizing ip command

I have this script to gather data trx rates. If I run this script normally, it executes fine. However, If I add this to cronjob to execute every hour, I get an error in the /var/log/ SERVER=`hostname ...
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0answers
23 views

wrong file owner

Syslog displaying the following: 04/06/14 05:16:01 PM loren-laptop cron[986] (system) WRONG FILE OWNER (/etc/crontab) /etc/crontab displays: Owner Me Is this a problem that requires fixing?
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27 views

Why cron.weekly started apt-xapian-index at 11AM instead of between 2-4AM?

I have redifined staring hours in /etc/anacrontab and /etc/crontab like following: --- my changes: 17 * * * * root cd / && nice run-parts --report /etc/cron.hourly 25 3 * * * ...
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0answers
19 views

Anacron and suspend

Does an cron task, that is run with anacron run even when my system is suspended? I know that anacron will run a job regardless of whether my system is on or off, but I thought that the jobs get ...
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38 views

Poor battery life: cron jobs running even in suspend

I was trying to figure out why my battery was dying out really fast even when in suspend mode. I noticed that my cron jobs run even when my laptop is suspended. I do not want this behavior. Cron ...
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99 views

xprintidle doesn't work in cronjob. Why?

I have lxle (Lubuntu) 12.04 installed and I spent lots of time looking for working solution to make PC shutdown after some period of idle state. After checking many programs which haven't worked I ...
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45 views

Auto update in ubuntu 13.10 desktop

My question is very basic and foolish one.I installed ubuntu 13.10 desktop 32 bit. Now I want auto updates of security. I visited this Ubuntu help page. But I waited whole day to see whether my ...
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0answers
178 views

Cronjob for MySQL Backup Bash Script Not Running

I am trying to backup many MySQL Databases on a daily basis into a Single ZIP. The bash script works fine by itself (ran in normal environment), but when the Cronjob takes over it does not run. Infact ...
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0answers
596 views

Java -jar runs via shellscript but not via cron

I have a shell script that I want to schedule via cron to be ran every 10 minutes. The shellscript runs a jar file. If i run the shellscript via ./sensorrreader.sh it works just fine (creates a file) ...
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0answers
45 views

Cron not running script

I have a script that works when called: /usr/local/bin/myscript #this works fine Permissions for the file are: -rwxr-xr-x 1 root root 155 Jan 27 09:34 myscript I've added a line to /etc/crontab: ...
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0answers
93 views

@reboot crontab vs startup script

What is the difference between using @reboot cron and writing a startup script (a script in /etc/init.d) ? In which scenarios should one be chosen over another ?
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31 views

No cron job for root

I am trying to make source distribution(python package) which has setup.py file that deploys cron job using subprocess call. But Error is coming : No cronjob for Root Here is setup.py file : $ ...
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261 views

crontab doesnt upload file via ftp script

I Write script that make a zip file with /var/www Directory And mysqldump db And upload it via ftp And change mode to executable file And put It in cron tab but file doesn't upload !!! #!/bin/bash ...
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134 views

cron job exetue, but receive error + 500 internal server error

I created a cron job on my apache server's cPanel, every 5 minute push the script, with this command: lynx -source http://mydomain.com/...c_html/xxxx.php and that script does not execute.. i receive ...
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49 views

Logrotate throws a SQUID4 error

I am using squid3, on my Ubuntu 12.10 server, for some months now. I never had problems like that until 4 days ago. Since then I get this mail every day: >Topic: Cron: test -x /usr/sbin/anacron || ...
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200 views

Running a script with cron

When a script is run manually, it works with no errors. The script is to add a user. However when run in cron, I get emails saying: sudo: no tty present and no askpass program specified Sorry, try ...
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0answers
109 views

java applet at startup with crontab not working

I know the question is asked in many variants and I have read them, but still cannot find an answer to my problem. I have a jar file which I want to run at startup as root. I have tried in rc.local, ...