Ubuntu Servers :: Cron Jobs At Reboot Not Working
Jul 13, 2010
Have a headless server running Lucid 64 bit. Everything is working great except for a couple of Cron jos I'm trying to have run at boot.
My user crontab looks like this:
# m h dom mon dow command
01 * * * * /home/ceallred/Scripts/SambaBkup.sh
@reboot /usr/bin/SpiderOak --headless &The SambaBkup script works like clockwork...
The SpiderOak job doesn't start. It works if I type the command in manually.
syslog only shows:Jul 13 22:45:33 RavenWing cron[1010]: (CRON) INFO (pidfile fd = 3)
Jul 13 22:45:33 RavenWing cron[1022]: (CRON) STARTUP (fork ok)
Jul 13 22:45:33 RavenWing cron[1022]: (CRON) INFO (Running @reboot jobs)
Jul 13 22:45:33 RavenWing CRON[1048]: (ceallred) CMD (/usr/bin/SpiderOak --headless &)Yet ps -A doesn't show a running SpiderOak process. It shows after starting manually.
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Jan 16, 2011
I recently set up exim so that I could test emails sent from my php sites. I have now been getting daily emails that either report errors from cron jobs or report a failure to send emails to root@cory-laptop or cory@cory-laptop about cron errors.I first of all don't want mail sent to the above addresses, because they are obviously not actual email addresses. Second, I'd really prefer not to get emails when an email failed to send to these addresses.
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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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May 22, 2011
I have this in my crontab (along with another line before it):
Code:
* * * * * /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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Jan 9, 2011
i need to know how to set cron jobs up for programs like eggdrop and psybnc
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Jun 2, 2011
I have a cron job that executes fine in opensuse 11.4. It is located in
/etc/cron.d/publish.cron:
jpablo /srv/django-apps/smcommand/scripts/publish.sh
It is correct, I want it to execute every minute. Now, I copied the same script to ubuntu maverick, and it doesn't run. Perhaps there's some ubuntu peculiarity that I'm not aware of?
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Mar 16, 2010
For some reason my cron jobs are not running and I can't seem to figure out why.
Here is crontab -l
Code:
SHELL=/bin/sh
PATH=/sbin:/bin:/usr/sbin:/usr/bin
[code]...
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May 10, 2010
I use crontab for a daily alarm clock, which stopped working after I moved to Lucid.
Code:
$ crontab -l
# m h dom mon dow command
[code]...
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Jul 13, 2010
I want to add two separate tasks/jobs to Cron that needs to run every 10 minutes, but I would like the second job to kick off only 5 minutes after the first job. Is there any way this could be done within Cron?
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Jan 6, 2011
run a cron job to download my email logs to my laptop. But the question is HOW? Im not sure how to write the php script for the cron job. the file is on "computer A" and the file is setup to chmod I just need to know how to write the php to "access" the other computer and then download the file to a certain file on my laptop.
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Jun 2, 2011
I am running Ubuntu 10.10 on a new Dell PowerEdge.
I built the system ~2 months ago and have successfully been running a list of cronjobs.
The jobs last ran on 5/31/11 at 7:35am. Since then none of the jobs have run.
I see "cron" in the process list when I run ps.
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Nov 15, 2010
I have a Fedora 11 box and I am confused about cron, where exactly do I enter the cron jobs? For example, I have a job that needs to run every half hour.
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Apr 6, 2011
Cron doesn't run jobs in Debian 64 (testing). It gives error
Code:
Apr 6 15:31:01 debian64 /USR/SBIN/CRON[5454]: (CRON)
Error (grandchild #5455 failed with exit status 1)
and does not run the script.
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Mar 21, 2010
I see so many guides on how to run crontab, but what I need right now is to learn how toFind log files about cron jobsConfigure what gets logged
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May 8, 2010
How can I cron jobs for less than a minute for example configuring cron job to do something for each 15 seconds.
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Jan 6, 2010
I have a file server that is an NIS client. User home directories are auto-mounted from another server. Users are not able to run cron jobs. The /var/log/cron logs says:
Jan 6 14:33:01 inclination crond[3217]: (username) ORPHAN (no passwd entry)
I tried adding an entry in /etc/passwd, /etc/group, and /etc/shadow but the test script I have still doesn't seem to run although cron thinks it did. The log entry for these attempts looks like:
Jan 6 15:30:01 inclination crond[4312]: (username) CMD (/home/username/test-script)
Now root does seem to be able to run cron jobs with no problem. My test script works fine from cron when runs as root. I suspect there's an issue with how I have NIS configured but I can't find any info. The test script runs fine from the command line when logged in as myself.
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Jun 13, 2011
i want to recieve mails to my emial id for the cron jobs i have assigned in linux command line..
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Apr 7, 2011
By default, cron jobs are scheduled to run at 4:40 IIRC. I have my computer set to suspend after half an hour of inactivity so, except for some all-nighters, pretty much every day at that time my PC is suspended. What happens to the cron jobs? I don't suppose they run while the suspension is in effect. Do they get run when the computer wakes up or does cron wait until the next day at 4:40 to run the jobs?
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Jul 7, 2010
Just curious if this is possible. What I want to do is setup a rsync job to backup my laptop to my personal file server(same LAN), but I want it do do this at 3AM while I'm sleeping. However I always close my laptop lid when I'm done using it which puts the laptop into suspend mode since that's how I configured my power options in gnome. Since I don't want to leave my laptop powered up all the time, I was wondering if it is possible to have a cron job scheduled that will wake the laptop up(out of suspend mode) and run my script/backup job, all without opening the lid of the laptop, and then put it back into suspend mode when it's done. Is this possible, and is it as easy as scheduling a cron job or is there some other scripting/configuration/trickery that I need to do to accomplish this?
Also, my laptop's BIOS has the option to power on at a scheduled time if needed, but I'm not sure if that would work with it being suspended(hibernation is not an option since my entire HD is encrypted with LUKS and I would have to be present to enter the password to boot the system.).
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Aug 16, 2010
I have a XEN DomU VM running Lenny and set up using debootstrap. I also have the TimeWentBackwards issue sorted using: [URL]. The problem is that my cron jobs just don't run. I've set up a cron job that simply echoes a date string to a file as a tester but it's not running. I've tried it under the root crontab, in /etc/crontab and set up in /etc/cron.daily. Is there something I'm missing?
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May 25, 2010
I need to create the following cron jobs:
job #1: runs Mon, Tue, Wed, Thu, Fri, Sun at 9PM every month except for 15th
job#2: runs on 15th of each month at 9PM
job #3: runs every Saturday at 6PM every month
What is the correct syntax for this kind of scheduled cron jobs?
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Jun 28, 2010
in my linux box i have lot of cron jobs. i need to make all cron jobs in script files. is it possible to make this. like[URL]Now how i change this in a script file
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Jul 1, 2010
I want to create 2 cron jobs daily
1st cron: Every day by 13(1pm) I want to stop the httpd service
2nd cron: Every day by 13:30(1.30pm) I want to start the httpd service
I tried but only 1 cron job can able to run at a time.
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Jun 18, 2011
I'm trying to remotely schedule a shutdown using cron but I can't get it to work. I did setup the following 'sudo crontab -e'
Code:
For some reason doesn't this work, since I was able to login and get this output when using 'date'
Code:
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Sep 15, 2010
My server... its CentOS (redhat alike). I need to make the server disable apache server then run mysql command to optimize the databases then re-enable apache server in a specific time daily. Is it possible?
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Jul 28, 2011
How to write a cron jobs in linux to monitor my project diskspace usage?
check diskspce= du -h .
any clue for me as a beginner?
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Feb 27, 2011
I have a Cent OS dedicated server, not sure what version though as I'm new to Linux. How do I find out what version I have? Is there an anti virus or security package that I can install on my server which can use Cron Jobs to do a scan every 12 hours.
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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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Jul 19, 2010
I have a friend who needs a script to reboot a system every 5 min... not sure how to set cron to do this every 5 min.
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Apr 24, 2011
I tried using the jobs command in bash in F14 but nothing happens.
Code:
[root@Fedora ~]# jobs -l
[root@Fedora ~]#
Code:
[root@Fedora ~]# which jobs
[Code].....
If jobspec is given, output is restricted to information about that job. The return status is 0 unless an invalid option is encountered or an invalid jobspec is supplied.
If the -x option is supplied, jobs replaces any jobspec found in command or args with the corresponding process group ID, and executes command passing it args, returning its exit status.
Is the jobs command dropped for the ps command instead ?
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