Ubuntu Installation :: Cron's /etc/cron.daily/apt Not Upgrading?

Feb 25, 2010

It seems that cron is not upgrading my Ubuntu 8.04 LTS Server, no GUI installed. I changed /etc/crontab and watched apt running:


ps -A | grep apt

showed it for a long time,


sudo tcpdump tcp

showed communication with canonical sites,




did not show any apt using CPU


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Fedora :: No Output From Cron Jobs In /etc/cron.daily

Jan 29, 2011

I have added some executable scripts to /etc/cron.daily but don't get the stdout/stderr output from them as mail (or anywhere else I have found). At least one of them is running (because I can see that it has added a file to the disk).

The peculiar thing is that I do get the output from /etc/cron.daily/0logwatch (part of the logwatch package) as an email each day.

The MAILTO line in /etc/crontab is "MAILTO=root" (unchanged from default). Same for /etc/anacrontab.

I do have an alias at the end of /etc/aliases which redirects root's mail to my own account, but this alias works fine for mail I send manually. (It also appears to work fine for the output from the file /etc/cron.daily/0logwatch.)

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Debian Configuration :: Cron.daily Not Running Daily On Laptop?

May 31, 2011

I am running on a laptop and cron.daily is set to run at 0625 So I wonder what happens if my machine is not turned on at that time.. At that rate it could also be off for the other periods as well (weekly, monthly) Is there solution that will allow them to run once they are online after the appointed time? using a cron entry that runs every 15 or 5 or 1 minute.

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Ubuntu :: Error Coming From: /etc/cron.daily/apt?

Nov 30, 2010

since I setup my system so that I'd receive system errors via email, I get an email each day from /etc/cron.daily/apt.Just wondering why this is, how I can fix it, or if I can just remove apt from cron.daily?uote:

To: root@jon-desktop
Subject: fcron <systab@jon-desktop> run-parts --report /etc/cron.daily


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Ubuntu Servers :: 10.10 - Daily Cron Script Does Not Run

Feb 21, 2011

I'm with Ubuntu server 10.10. I created a script and put it in /etc/cron.daily. But looks it doesn't run (it didn't generate any log). The following is all I did.
root@chonseng1:/var/log# cat /etc/crontab
# /etc/crontab: system-wide crontab
# Unlike any other crontab you don't have to run the `crontab' command to install the new version when you edit this file and files in /etc/cron.d. These files also have username fields, that none of the other crontabs do.

# m h dom mon dow user command
17 * * * * root cd / && run-parts --report /etc/cron.hourly
25 6 * * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily )
47 6 * * 7 root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.weekly )
52 6 1 * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.monthly )
root@chonseng1:/var/log# ls -l /etc/cron.daily/ntpdate
-rwxr-xr-x 1 root root 52 2011-02-18 13:22 /etc/cron.daily/ntpdate
root@chonseng1:/var/log# cat /etc/cron.daily/ntpdate
ntpdate ntp.ubuntu.com >>/var/log/ntpdate.log 2>&1

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Red Hat :: Server Reboots Sometimes Cron.daily

Dec 31, 2008

I have an issue, it doesn't happen every day, I can't seem to trace it down. It happens at 4:02am the cron.daily kicks of at 4AM.. The following is from the /var/log/messages. I receive an panic error then the server shuts down.

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CentOS 5 :: No Items From /etc/cron.daily Run On 5.3

Oct 26, 2009

I'm having a very strange issue with cron on centos 5.3 64-bit. I have 3 cron scripts in /etc/cron.daily which run backups. They are as follows:







The contents of the 3 /usr/local/bin scripts are ...

synbak -s srv1 -m rsync
rsync -av --delete /data/backup/srv1/* root@::share/srv1/

To explain this, the 1st active line does a synbak backup and the 2nd active line rsyncs the backup data to a remote server.

synbak -s srv2 -m rsync
rsync -av --delete /data/backup/srv2/* root@::share/srv2/


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Ubuntu Servers :: Getting My Shell Script To Run On Cron.daily?

Sep 30, 2010

My backup script works fine after some effort to get it where I wanted it. So the script is fine when I run it.

sudo bash backup.sh

now I have a sym-link to /etc/cron.daily but I do not see any new backups

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CentOS 5 :: Emptied Cron.daily Accidently ?

Nov 25, 2010

I made a big rookie mistake in a script in cron.daily, which emptied the directory when I tested it... now I'm left with an empty cron.daily directory, and from what I know there definitely were more scripts there than only my own. Does anybody know what scripts CentOS 5.4 (Final) needs in the cron.daily?

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Fedora :: Executable File Into The '/etc/cron.daily' Directory

Jan 19, 2011

I have noticed that in the /etc directory there are some subdirectories of /etc/cron.daily and /etc/cron.hourly. Also I have determined that there is a service included as part of the Fedora OS 'crond' which I have started with the use of 'service crond start'. My question is this. If I drop an executable file into the '/etc/cron.daily' directory will it just run? If not what configuration files should I go about editing to run my executable daily? There seems to be a pretty large network of cron related files. I'm trying to make sense out of all of it.

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General :: How To Give Priority To Task Running In Cron.daily?

Nov 9, 2010

I have two custom tasks running daily. How do you give priority to one over the other?One of them is configured via the logrotate.conf. The other sits directly in cron.daily.I'd like the one in cron.daily to run after the script that is in logrotate.Please can you advise how to do this...

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Ubuntu Servers :: Cron Sending Email From Address / Change The Default Domain Name For Cron?

Apr 29, 2011

Can anyone tell me how i change the default domain name for cron?everything i cron runs it emails from and to user@com.com

this leaves me with a massive list of failed mails in postfix.i have mailto on my main crontab but i cant do it on all of them.

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Ubuntu :: Do Cron Updates Erase Cron Entries

Sep 19, 2010

I put in my cron entries to run my backup script which rsyncs my data to my 2nd drive, however on a hunch I checked my backup drive which mounts automatically via fstab and I realize it had not ran in a while. I checked cron and there were no entries for it. I got to wondering if I should ever be worried about a cron update coming down and over-writing my existing cron file with the backup entries in it to run.

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CentOS 5 :: Setup A Cron In /var/spool/cron/root

Feb 16, 2010

I have set up a cron in /var/spool/cron/root

*/15 * * * * /usr/bin/phplist.sh

I can see in /var/log/cron that it is running every 15 minutes but it has no effect. It is not doing the commands in the bash script.

If I run /usr/bin/phplist.sh right in the shell it works great.

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Software :: Vixie-Cron Not Running /etc/cron.d/

Feb 9, 2011

Is my vixie-cron broken? i have "0-59 * * * * root /usr/sbin/logrotate /etc/logrotate.conf" but it is not running in /etc/cron.d.


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Ubuntu Installation :: Cron Requires Manual Start After 10.04 Upgrade

Jun 24, 2010

After upgrading Ubuntu from 9.10 to 10.04, the cron daemon no longer runs automatically upon starting up the machine; I need to enter "sudo service cron start" to get it running. Is there a way to get it to start up by itself?

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Ubuntu Installation :: Automate Shut Down Computer After Cron-apt Job Finished?

Jul 9, 2010

Hopefully a simple question but one I have had a hard time finding:I am using cron-apt to automate updates as follows:

graham@graham-desktop:~$ sudo cat /etc/cron.d/cron-apt


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Ubuntu :: How To Use Gpg + Cron

Aug 10, 2010

I have this script:

## cifro un fichero
/usr/bin/gpg --encrypt --batch --no-tty --yes --recipient Mypubkey /home/joseba/salida.txt > /home/joseba/logcronjob.txt

If I use the line

joseba@server$ /usr/bin/gpg --encrypt --batch --no-tty --yes --recipient Mypubkey /home/joseba/salida.txt > /home/joseba/logcronjob.txt

I dont have problems, salida.txt has encrypted

But by crontab -e (for user joseba) dont work and dont encrypt nothing If I use 'sudo crontab -e' same result, dont work

Mypubkey exists

On logcronjob.txt nothing, 0 bytes I think env its ok for the users

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Ubuntu :: Can't Get Cron To Work

Jan 6, 2010

I've been trying to accomplish this on my own, but I can't seem to figure it out...

All I'm trying to do (for learning purposes) is to get a message to print out to a log file every 5 minutes.

This is on Ubuntu Server 6.06.

Logged in as root ( I know, I know, should have sudo'd, oh well... )

Created a new file with this in it:


Added this line:

( I wasn't sure the proper command to try every 5 minutes, but this is my latest iteration. I also started with just */5, and that didn't seem to work either. )

Saved and exited crontab.

Console reports:


Using command: ps -ef | grep cron


So I waited 10 minutes to be safe.... and saw no log file appear.

I checked this page here: [url]

I wasn't sure what it meant by the PATH= variable they wanted me to set, my /etc/crontab file states:


But I didn't know if it meant there, or in my crontab -e location, so after the first failed attempt, I added the line from that webpage as well to crontab -e:


Waited another 10 minutes to be safe, still nothing.

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Ubuntu :: Second Cron Job Isn't Running?

Jan 6, 2010

why my second cron job isn't running? The first one runs fine but the second one does not run at all. If I manually run the script using ./check.sh then it does what it is supposed to but will not run from cron. It should run every weekday at 9:45am, it looks good to me but clearly I am doing something wrong.

# m h dom mon dow command
#This will backup my hosted websites.
0 2 * * * /home/bob/scripts/websitebakscript.sh
#This will run check and upload it's contents to the net.
45 9 * * 1,2,3,4,5 /home/bob/scripts/check.sh

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Ubuntu :: Shutting Off Pc With Cron?

Jan 25, 2010

I'm trying to set up my pc to power off at 00:30 everynight. I'm using webmin's Scheduled Cron Jobs tool. I've tried (running as root):

shutdown -h now

and neither have powered off the pc using webmin. Am I missing something?

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Ubuntu :: Run A Script In Cron?

Jul 10, 2010

How do I run a script in cron? would I do it like this:


* * * * * script.sh

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Ubuntu :: Cron Job Is Not Running?

Oct 25, 2010

Cron refuses to work for a newbie.I am trying to setup a cron job to backup a folder in my home directory ('/home/scratch') to a folder ('home/internet_backup') that is mounted (using nfs) to a network folder.the folder ('home/internet_backup') is mounted correctly to the network folder upon system startup, so this part works.

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Ubuntu :: Cron Job Not Working?

Oct 30, 2010

After I create a cron job to shred some documents it seems to start and then immediately stop. What am I doing wrong? For instance, here is my cron:

PATH = /usr/local/bin:/usr/bin:/usr/sbin:/bin:/sbin:


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Ubuntu :: Getting Script To Run In Cron?

Nov 4, 2010

I have a working bash script to do backup - it runs fine from the terminal. During the backup it makes a log file in my home area. I transferred it to root, and set it up to run as a cron job as root. It runs fine as long as I am logged in with my normal user name. It does not run if I am not logged in. Logs show the script was called by cron, but there is no output and no backing up is done.

Here is the script


for i in `cat /proc/mounts | cut -d' ' -f2`; do
if [ "$i" = "/media/Elrond" ]; then


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Ubuntu :: Cron Job Running But Nothing Happens?

Nov 5, 2010

I am making a webpage which is to be automatically generated every minute. I've created a cron job in crontab like this:

0-59 * * * * /usr/bin/php /var/www/site/updatestatistics.php > /dev/null

When I refresh the page 'updatestatistics.php' in my webbrowser it does generate a new page ('statistics.html', which is included in 'statistics.php'). But when I let this cron job do the job, nothing happens. I looked into the log file, it shows this:

(root) CMD (/usr/bin/php /var/www/site/updatestatistics.php > /dev/null)

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Ubuntu Servers :: How To Use The /etc/cron.d

Mar 17, 2011

I have this symlinked into my /etc/cron.d folder:


*/5 * * * * python /srv/bidsite/manage.py send_mail
* * * * * echo `date` >> /home/bidsite/what.txt

but it does nothing. What I really want to happen is the first line. The second line is just for testing.

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Ubuntu :: Cron Not Running On 9.10?

Apr 3, 2011

After saving a few sample scripts in crontab, I discovered that cron is not running properly on my Ubuntu 9.10 (32 bit), after a recent reinstallation. Please note that the files "/var/log/cron" and "/etc/defaults/rc.conf" are empty in my system.

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Ubuntu :: Script Will Not Run From Cron - Tried Everything

Apr 21, 2011

I'm trying to get this script, which normally works fine, to run from cron. This is far from my first custom cron script, but it's the first to give trouble! I've added PATH directives (never had to do that before) but it still didn't work. I also tried setting absolute paths, that didn't help either. If I add a line that echoes a string to a file as a test at the end of the script, the file appears, so I know the script is executing, it just looks like the cpufreq-set commands aren't working. The purpose of this script is to adjust the maximum SpeedStep setting on my now passively-cooled home server to keep the CPU from getting too toasty.

#! /bin/sh
# set temp above which to drop the maximum frequency
scaledowntemp=`echo -n "62"`
# set temp below which to reset the maximum frequency
scaleuptemp=`echo -n "59"`
# get cpu temperature
cputemp=`sensors | grep "Core 0" | gawk '{print $3 }' | sed -e 's/+//g' | sed 's/....$//'`
if [ $cputemp -lt $scaleuptemp ] # if temp is in acceptable range, set max frequencies free
cpufreq-set -c 0 -u 2.81Ghz
cpufreq-set -c 1 -u 2.81Ghz
if [ $cputemp -gt $scaledowntemp ] # if temp is too high, limit cores to 1.6Ghz
cpufreq-set -c 0 -u 1.61Ghz
cpufreq-set -c 1 -u 1.61Ghz

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Ubuntu :: Cron Jobs Don't Run?

May 22, 2011

I have this in my crontab (along with another line before it):

* * * * * /bin/echo "Does this work?" > ~/test
...and the file doesn't show up. I have a blank line after that one in the crontab. I have no /etc/cron.allow or /etc/cron.deny files. I'm running Ubuntu 11.04. /var/log/syslog shows "BEGIN EDIT" and "END EDIT" etc. when I run crontab -e, but doesn't say anything about trying to run commands. Anything I might be missing?

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