CentOS 5 :: Script Don't Obey Cron Orders?
Oct 23, 2009
I have an script called conection located in /etc/ppp ( /etc/ppp/conection)The content of the scrips is:
pppd call isp Running it by hand, it dials out to my ISP and fetch all my email from different accounts and turn-off the link. It works great. I decided to automate the process using the cron.
The problem is when cron execute it at the specified time, nothing happens. It doesn't even dials out. I checked /var/log/cron and cron says It was executed. But it doesn't. I try again running the script by hand and works fine.
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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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Jun 18, 2010
VLC media player freezes so often, Ive tried reinstalling it, nothing so I tried force quit alt+F2 click nothing tried the force quit panel add on still nothing TT____TT. :U it functions to the point where it can do most things but not play any musical media
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Mar 15, 2011
On Ubuntu 10.10 I started a 2nd instance of Firefox using the command: Firefox -ProfileManager -no-remote &Created a new profile and everything works smoothly except for the fact that this instance of FF does not obey by GTK2 customizations that I have placed in ~/.gtkrc-2.0.Moreover, only SOME of the customizations are not obeyed. For example, the vertical scrollbars are supposed to be on the left, but they are on the right. The scrollbar arrows are together (Mac-like) as specified, so is the scrollbar width.The first instance obeys all customizations with scrollbars on the left.
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Jul 20, 2011
I am going through the motions of migrating from Rhythmbox to Banshee so that I can field questions about the process as Banshee takes over for Rhythmbox in Ubuntu. I have solved a silly issue about importing playlists (they must be imported from /home/username/ or you must alter the paths in each entry). But there is another issue which I am at a loss to explain.
My playlists are like mixed tapes. They are in a specific order. When I import a playlist into Banshee that order is not preserved. I have checked the files and they are definitely ordered and numbered in the playlists just as they are in Rhythmbox, but Banshee refuses to import them with the order respected regardless of the smallness of the list.
What's going on and how can I correct this?
I'd rather not have to reconstruct all of these playlists.
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Jun 20, 2011
Player-Stage uses .cc files. I know how to compile them. But how do I actually execute my code? There is an output file generated. There is nothing in the .cfg file or in the .world file that specifies what program to use to run the robot. Or is it not specified in the world or cfg files?
Then how to make the robot obey my compiled .cc file? If this question is silly or if I am asking stupid questions
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Dec 29, 2010
I just want to confirm something before I mess with the bootloader. It kind of scares me to rewrite my MBR. It appears that the grub version that comes with Ubuntu 10.10 drives its menu generation from /etc/grub.d/* when you execute update-grub. If I want to put windows first in the list, could I just rename "30_os-prober" to something like "09_os-prober" and run update-grub? My reason for this is every time Ubuntu updates the kernel, it adds 2 new entries to grub's boot menu. It's easy enough to remove these via the Synaptic Package Manager, but that means for at least 1 boot cycle, my default OS gets messed up (Windows). I have to leave it as the default for others that use the computer, even though I prefer Ubuntu.
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Jul 23, 2009
Im not sure iam posting in the right place forgive me if i posted incorrectly. I have just setup my first ever Fedora computer/server. Ive got clients to log into it via network booting using LTSP. Im really pleased but I have a few questions I need to ask. As I want to use this for a for work i.e. Im setting up a small business.
1. I need my clientcomps/employees to use a certain file on the desktop, to take peoples orders, another file to search and another file to edit etc. Iam intending on using a php web file that will save info to a SQL database can this be done? and how?
If I save a web document when iam admin on the desktop, my other users dont see it.
2. I want to restrict certain websites during work hours like Facebook etc (haha i want them to have access in their breaks though).
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Jan 7, 2010
I have created a conjob via ssh by going to crontab -e and adding my scripts like 05 10 * * * /scripts/old-files-delete.sh.The file has 755 permissions and if I run the script manualy it works fine. I have checked the cron log and it does not show up as running at all.
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Oct 27, 2010
I want to create some scheduled jobs in a CentOS server. These jobs are simple and repeatable, but the scheduling is complicated. I want a series of jobs to start every day but Monday, and not on the last day of the month. These jobs depend on software execution outside the server ( a Windows application) so if the Windows app fails, I need to temporarily suspend the cron jobs so I can straighten out the Windows server.
I've looked over some cron alternatives and nothing seems suitable. Am I stuck with cron and the limitations of crontab, or are there some programmatic things I can do in cron that I don't know about?
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May 27, 2009
I' running awstats via
/etc/logrotate.d/httpd
prerotate
/usr/bin/awstats_updateall.pl -awstatsprog=/var/www/awstats/awstats.pl now
endscript
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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:
script1:
#!/bin/bash
/usr/local/bin/backup-script1
script2:
#!/bin/bash
/usr/local/bin/backup-script2
script3:
#!/bin/bash
/usr/local/bin/backup-script3
The contents of the 3 /usr/local/bin scripts are ...
/usr/local/bin/backup-script1:
#!/bin/bash
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.
/usr/local/bin/backup-script2:
#!/bin/bash
synbak -s srv2 -m rsync
rsync -av --delete /data/backup/srv2/* root@::share/srv2/
[code]....
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Jun 2, 2010
I'm trying to add several cron jobs. I have a folder (/etc/cron.myapp) with several subfolders in it (30minute, 3minute, daily, hourly). Each of these folders contains a script.Runnng/usr/bin/run-parts /etc/cron.myapp/3minute/will execute the contents of that folder.I have tried adding the following entries to /etc/crontab with no luck, and nothing is showing up in /var/log/cron
*/3 * * * * /usr/bin/run-parts /etc/cron.myapp/3minute/
*/3 * * * * /usr/bin/run-parts /etc/cron.myapp/3minute
*/3 * * * * root /usr/bin/run-parts /etc/cron.myapp/3minute/
[code]....
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Mar 15, 2011
I am using cent os 5. I My server daily shutdown at 7:00 PM.I want to see the log file of my cron activity what the process is successfully started or not
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Sep 10, 2009
i cannot find it in the man. Is it possible to run cron job like this:
Run script from 18 00 till 5 00?
I want to run some script but only during the night time, when users are not working.
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May 25, 2010
I have the following cron configuration in the 'crontab' file:
SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=<--- REMOVED -->
HOME=/
# run-parts
01 * * * * root run-parts /etc/cron.hourly
02 4 * * * root run-parts /etc/cron.daily
22 4 * * 0 root run-parts /etc/cron.weekly
42 4 1 * * root run-parts /etc/cron.monthly
20 16 * * 1-5 root wget [URL]
07 30 * * 1-5 root wget [URL]
11 30 * * 1-5 root wget [URL]
My focus is on the three WGET commands. The problem is the first one works fine, runs at 4:20 p.m., but the other two never run! If I visit [URL] it works fine but cron never runs it.
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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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Mar 9, 2010
Within a VMWare ESX virtual machine, I am running CentOS 5.2. (Actually, it is kind of a virtual appliance to run CollabNet's Teamforge - which I have installed for a trial). I've been dabling with Linux for a year or so, but I know I have much to learn.
I'm attempting to run a cron job that runs a backup script at 11pm. It works great, but unfortunately it runs at 11:30 am.
I created the cron job using 'crontab -e', while logged in as root. My cron job line is : 0 23 * * 1,2,3,4,5 /etc/tjt_backup/collabnet_backup.sh
If I type 'date', I get the correct date/time in my timezone: Tue Mar 9 16:27:12 CST 2010
If I type 'clock', I also get the correct date/time: Tue 09 Mar 2010 04:26:57 PM CST -0.463330 seconds
(Although, it appears there is a little drift)
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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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Aug 5, 2010
I recently install CentOS 5.5 on my small server. Unfortunately, I have problems with my mail configuration. I don't know anything about sendmail and dns configuration so I am just looking for something easy to set up. I use cron to perform automatic task. I set up the variable $MAILTO in cron to my regular mail. Cron send the mail but it is stuck in the queue.
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Apr 20, 2011
I have script which does file locking via flock and then writing it's pid into that file. It perfectly works being run by hand in terminal, running under cron on Debian, but somehow fails being run under cron on Centos 5.6. Script part and straced outputs are below.
bash code:
#setting lock
mylog "setting lockfile $LOCKFILE"
exec 200<> $LOCKFILE
[code]....
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Dec 7, 2009
I'm running CentOS 5.4.In the last three days I've started to get various cron errors:
/bin/sh: line 1: 7066 Segmentation fault /usr/local/scripts/cron.email.sshd.access/cron.email.sshd.access.pl
/bin/sh: line 1: 4822 Floating point exceptionsudo -u mobile getmail --quiet
Can't load '/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/auto/RRDs/RRDs.so'
[code]...
Then yesterday I rebooted, and all the other errors seemed to have disappeared for now, but, I am now getting:
/bin/sh: line 1: 23600 Segmentation fault sudo -u mobile getmail --quiet
I have setup cron to call getmail once every 3 minutes, and I get this error about 4-6 times an hour.
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Jan 23, 2011
I am using
# uname -rmi
2.6.18-194.26.1.el5PAE i686 i386
# cat /etc/*release*
cat: /etc/lsb-release.d: Is a directory
Red Hat Enterprise Linux Server release 5 (Tikanga)
CentOS release 5.5 (Final)
I have noticed that after few days of ideal system it will stop its network interface. To resolve this I have to login to the machine it self and then issue
# service network start
Is this a feature. If this is not a feature then what is this. As an workaround I am thinking of adding service network restart in cron tab for everyday in night when I am not using it.
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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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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:
Code:
ps -A | grep apt
showed it for a long time,
Code:
sudo tcpdump tcp
showed communication with canonical sites,
but:
Code:
top
did not show any apt using CPU
[code].....
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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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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.
Code:
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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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Aug 28, 2009
Is there something that blocks cron from running a shutdown command? I'm doing a daily bounce to break an attack (I have thread about that in security forum), but I always end up doing it manually. The cron log shows it being fired off at the right time...but the server never bounces. I thought maybe I just missed it, but there is nothing in messages that shows the server restarting (unlike when i do it manually, you see the start-up logging).
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Oct 28, 2009
I have a php script that checks versions of a remote stock file every 15 minutes. When it discovers that a new version is available it downloads the new file and runs it through a series of scripts that prepare it for an e-commerce application. It takes about an hour to import the file and process it. Otherwise, it echos "file on remote host not newer than local file". The stock file is updated every 3 or four hours and it's never at the same time. So we would like to run this script every 5, 10, or 15 minutes to make sure we have updated files.
So what happens when my php script finds a new file and takes an hour to do its work? Will the cron be activated three more times during this span? In other words, will it keep starting over even if its still running from a previous cron? Is there a way to stop the cron from running while the file download and processing occur, and then resume when its finished?
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