General :: Configure Cron Entry To Run Every Other Friday?

Oct 14, 2010

I have a requirement that a job run at a particular time every other Friday. I was wondering if I can configure cron to do this - perhaps using the /step feature? For example, can I do the following?

0 21 * * 5/2 /my/command

If this works, how does it decide when to begin skipping? In other words, where is the first Friday? Is it the first Friday of the Year? of the Month? I would just try it, but it would be an awful long time to wait to see whether or not it is working.

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General :: How To Configure Grub (New Entry Via Yast)

Jun 15, 2010

For some time I have been using Clonezilla to backup/restore linux installations. I would like - instead to USB-key that is always not to be found, to somehow "move" the clonezilla (on a USB stick). What I have tried to is to make a separate partition to install this on, copied all the files on the USB -key to that partition, and then make a new entry in GRUB via yast. Then I point to the new wmlinus and initramfs. I would have been much surprised if something link this was working after first shot. But it was also not working after the 80. shot.

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Slackware :: Setup A Cron Job Using Crontab Entry

May 31, 2010

I am trying to setup a cron job using crontab entry like this 6,16,26,36,46,56 * * * * /usr/bin/fetchmail -k>/dev/null 2>&1 But nothing is happening This is the first time I have attempted using cron as I have settup mutt for my email which is now working great but I would like to have the mail collected every 10 mins The file is saved as mailcron in my /home folder. When i run crontab -l its listed ok but no mail is appearing in mutt.

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OpenSUSE :: Cron (Cannot Make / Remove Entry For PAM Session)

Jun 28, 2011

I run a virtual server with a standard minimal openSUSE 11.4 installation (Strato image) and all recent updates installed.
Code:
$ uname -a
Linux servername 2.6.18-028stab089.1 #1 SMP Thu Apr 14 13:46:04 MSD 2011 i686 athlon i386 GNU/Linux

A few days into running the server I found that although /usr/sbin/cron was running it didn't execute the cron scripts. Instead, I find this:

Code:
$ tail -n 3 /var/log/messages
Jun 28 18:00:01 servername /usr/sbin/cron[28590]: pam_warn(crond:session): function=[pam_sm_open_session] service=[crond] terminal=[cron] user=[root] ruser=[<unknown>] rhost=[<unknown>]
Jun 28 18:00:01 servername /usr/sbin/cron[28590]: (root) PAM ERROR (Cannot make/remove an entry for the specified session)
Jun 28 18:00:01 servername /usr/sbin/cron[28590]: (root) FAILED to open PAM security session (Cannot make/remove an entry for the specified session) repeated every 20 minutes.

I have this:
Code:
$ cat /etc/pam.d/crond
# The PAM configuration file for the cron daemon
# No PAM authentication called, auth modules not needed
auth sufficient pam_rootok.so
account sufficient pam_listfile.so item=user sense=allow file=/etc/cron.allow onerr=succeed quiet
auth include common-auth
account include common-account
password include common-password

As per the standard installation and /etc/cron.allow doesn't exist (I tested if it made a difference if it existed with the single line root in it, but there was no effect). I need cron to execute because I want zypper to auto-update my server. On my home openSUSE 11.4 installation the problem doesn't exist. Is it perhaps related to the settings in the yast security center?

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Ubuntu :: Cron Entry - Doesn't Seem To Be Running - Don't See Any File Gets Written To The Log Directory

Oct 4, 2010

I have the following cron entry but it doesn't seem to be running:

Code:

The script does exist. And so does the directory /home/usr/log and writable. /var/log/syslog only has a bunch of these:

Code:

I don't see any file gets written to the log directory. That suggests to me that cron didn't run the job, as confirmed by /var/log/syslog.

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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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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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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:

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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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.

Code:

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General :: How To Add A New Entry To Fstab

Sep 13, 2011

I mount a device mount /dev/xvdf /mnt/mongo and verify the mount using df-h:

Filesystem Size Used Avail Use% Mounted on
/dev/xvda1 7.9G 955M 6.9G 12% /
tmpfs 299M 44K 299M 1% /dev/shm
/dev/xvdf 20G 589M 19G 4% /mnt/mongo

But now I'm trying to figure out how to make it auto mount on boot. I understand I need to add a new entry to /etc/fstab, so I perform: $ sed -i '$ a/dev/xvdf /mnt/mongo xfs defaults 1 1' /etc/fstab But, after reboot, it seems that the auto mount didn't work. The device didn't appear in the df -h list.

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General :: Set The Same ACL Entry For The Default ACL?

Apr 19, 2010

i think i have found a bug in the unix ACL permissions. I tested this problem in the Ubuntu 9.10 and in SLES 10 and 11, all of them with setfacl 2.2.47.

Well, I have done the following test:

1) Create a folder and set some named user, and set the same ACL entry for the Default ACL, like the following example:

Code:
mkdir dir1
setfacl -m u:rodrigo:rwx dir1/
setfacl -d -m u:rodrigo:rwx dir1/
getfacl dir1/
# file: dir1/

[Code].....

Note that some permissions are different from the ones in the Default ACL in the dir1/

why the file1's permissions are diferrent from the dir1's default ACL entries? Is this a bug?

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General :: No /dev/i2c-0 Entry After Insmod I2c-dev?

Aug 9, 2011

I am using a windriver Linux. I have built the I2c-core, i2c-i801 and i2c-dev drivers and they are getting inserted while booting. After boot up, there are sysfs entries in /sys/class/i2c-dev/i2c-0 and /sys/bus/i2c/i2c-0. But there is no entry in /dev. In dmesg, it shows a line:

Quote:
i2c /dev entries driver. But it does not creates any entry in /dev.

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General :: Add <install_dir>/lib To LD_LIBRARY_PATH If Already Entry Is There?

Feb 11, 2010

I already have LD_LIBRARY_PATH setup in my /etc/profile as:

Code:
export LD_LIBRARY_PATH=/usr/local/lib
Now there is a request to add a new entry for LD_LIBRARY_PATH.

[code].....

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General :: Add Entry To GRUB2 With 2 Hard Disks?

Jun 8, 2010

I have two ide hard disks. One with windows and other with ubuntu 10.04. i want both windows and ubuntu in grub menu so what should i do ?

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General :: Add Windows 7 To GRUB Boot Entry?

Jul 20, 2011

I have Recently downloaded Fedora 15.|64bit| & I Think its a very good distro. However I Realised Once My Pc Restarted My Windows 7 Was Removed from my boot entry. I am Not At All familar with Linux, Ive Read millions of forums trying to fix my problem but all has failed.Could someone show me how to add The OS Back or How To Burn A Bootable OS (Win7) Using This Distro Of Linux.

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General :: Removing The Comma From A Currency Entry?

Apr 24, 2010

I have a file of the formcol1, col2, $330,000, col4 ...col1, col2, col3, col4 ..col1, col2, $230,000, col4 ...The comma within the currency value causes the column to display unevenly when I open it so I want to remove it. I think I should be able to use the sed command but I am not sure extactly how. All the values have 3 digits after the $ and before the , so have triedsed -e 's/$[0-9]*,/ but I am not sure how to 'replaced with the string found just without the comma'So two guestions:1. Is this a good way to do it?2. How do I do it

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Server :: Bad Entry In Directory Unaligned Directory Entry?

Apr 1, 2011

I have the following error on one of my servers. Is there a way to tell which directory is exactly having the problem? if there is, if i delete that directory, will that resolve the problem or no?kernel: EXT2-fs error (device md(9,0)): ext2_check_page: bad entry in directory #10158084: unaligned directory entry - offset=0, inode=605471640, rec_len=7606, name_len=177

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General :: What Does Kernel Entry In Grub Configuration File Mean

Jun 17, 2011

I have looked at the GNU GRUB Manual 1.99 at [URL] but I cannot find an explanation of what the kernel entry / command in the grub.conf file means. I get what's the meaning of that entry but where is described what it actually is and what are proper.

I suppose this entry / command was actual in GRUB Legacy, but I cannot find where it is described...

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General :: Sudo For A Single Command With No Password Entry

Apr 20, 2010

I wish to allow a user to use sudo to run a single command (service app status) to determine if my application app is running, in my sudoers file i have: user ALL= /sbin/service app status I understand that there is a parameter called timestamp_timeout that will set the timeout for the 'user', but requires at least 1 entry of the root password.

I wish to allow the user to do "sudo service app status" and not have to enter the root password ever(maybe once is ok), but still make the user enter the root password for all other root activities. Is there a way to prevent the password entry for this command only and no others?

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General :: Inserting Entry Of Opensuse In Grub 2 Of Mint 10?

Mar 2, 2011

i installed opensuse 11.3 on sda6 and linux mint 10 on sda8

currently the grub2 appears at start of system and there is no entry for opensuse 11.3

i didn't installed the grub bootloader at time of opensuse installation as then i would be having grub and grub2 both

please tell how to insert the entry of opensuse in grub 2 ?

i want to know which files are to be edited and what has to be inserted to accomplish this task ?

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General :: Free Software To Alert On Desktop Upon New Entry In RSS Feed?

Jun 30, 2010

Is there any software I can use in the Gnome desktop environment on Ubuntu Linux 10.04 that alerts me of a new entry in one of my subscribed feeds, via something visual like a popup, glowing, etc.

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General :: Making A Directory Entry Pointing To (file+offset)

May 5, 2010

The *.dbf files (DBase III Plus files) have a header (metadata) and follow with n fixed records. I'd like to make a directory entry (like a symbolic link) that point to the fixed record area into a .dbf file. Is it possible in linux? The request is motivated by access a .dbf file from a Firebird SQL Database using CREATE TABLE EXTERNAL FILE '/tmp/mydbf.dbf' ( ... ); but this command only works on fixed records.

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General :: 3. Etc/exports Entry Would Export A Directory Named /nfs To All Clients On The?

Jan 22, 2011

3.What /etc/exports entry would export a directory named /nfs to all clients on the subnet 192.168.10.0 and give them read-only access?

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General :: No Boot Loader Entry For Ubuntu 10.04 After Installing OpenSUSE 11.3?

Jul 22, 2010

When I installed openSUSE 11.3 I already had Ubuntu 10.04 installed and I installed these 2 OS's side by side but openSUSE didn't seem to add a Ubuntu menu entry in GRUB boot list So now I can only boot into openSUSE 11.3 and not Ubuntu 10.04. How can I fix this?I found in YaST an option to add extra boot menu entries but i don't know how to use it... or maybe there's also another way i can add Ubuntu entry to my GRUB boot menu?

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General :: Add A Menu Entry When I Right Click My Mouse System Wide?

Feb 3, 2010

How can I add a menu entry when I right click my mouse system wide?

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General :: Will Cron Run If It Is Currently In Use?

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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General :: How To Use 'AT' Or Cron

Mar 17, 2010

How can I run a scheduled job in a specific hour minute second (hh:mm:ss) I tried "at" but I do not know how to send it "seconds".

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General :: Run Cron Every Day At 4:30am?

Jun 24, 2011

i want to run my cron every day at 4:30am

304***php /home/lfncltee/public_html/Center/all_in.php >/dev/null 2>&1

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