General :: Time Script Without Using Crontab?
May 23, 2010I want to write a ping script that ping a ip after every 60 sec and log output to a file
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General :: Run Crontab At Various Time Zone?
Apr 21, 2011My server is in CDT. I want to run one script @9.30am of EST5EDT
View 4 Replies View RelatedGeneral :: Crontab Not Working \ Edited Crontab File Using Crontab -e?
Apr 27, 2010I am using Linux 64 bit Redhat Linux. I am trying to setup simple crontab as follow...1. Edited crontab file using crontab -e2. Listed the file once to verify it using crontab -l. This will display as.. 18 5 * * 2-3 ksh $HOME/testScript.sh > $HOME/testscript.out3. Logged in a root and restarted cron deamon using "/etc/init.d/crond restart"As per my understanding now my testScript should start running at 5:18 am Thuesday
View 3 Replies View RelatedGeneral :: Configured A Script To Be Run At Specific Time Using Crontab
Mar 17, 2011We have configured a script to be run at specific time using crontab.
Code:
# crontab -l
as per the crontab entry script should run every day 11.15 a.m
Every time when the script is executed i get a mail but when i run it using crontab it doesn't send any mail.
However when i execute it manually i get the mails.
Even the execution is getting logged in cron log.
Code:
General :: Crontab - Backup Database Daily At Fixed Time
Jul 28, 2010I'm trying to back up my database daily at 2:30am. is this the right format?
30 2 * * * mysqldump -u root -pPassword database > backup_$(date +%y%m%d).sql
General :: Possible Disabling Crontab Job Without Deleting Crontab Description Entry
Jun 23, 2011is it possible disabling a crontab job without deleting the crontab description entry (by crontab -e)?I could also accept to change the entry itself. Now it's:0 0 * * 0-6 /home/me/cron/script.csh
View 4 Replies View RelatedFedora :: Crontab To Set A File Playing At A Certain Time?
Jun 6, 2010I used crontab to set a file playing at a certain time, this works fine; however I want this to run even if no-one is logged in (but the computer is on). I can't get it to do this
Line is: 30 06 * * * env DISPLAY=:0.0 /usr/bin/totem /home/adunaic/Playlist.pls
Okay I think the problem was with needing a GUI.
Using this instead works, but i only hear the sound when I log in. I think something needs to be doen to start the audio perhaps?
14 17 * * * export DISPLAY=:0.0 && /usr/bin/mpg123 /home/adunaic/alarm.mp3
General :: Difference Between /etc/crontab And "crontab -e"
May 29, 2011What is the difference between the crontab located in /etc/crontab and the crontab that can be edited using crontab -e?
View 2 Replies View RelatedUbuntu Servers :: After Using Crontab With /etc/crontab / Giving Error "can't Find Command Root"?
Aug 26, 2010I have a question about using crontab with /etc/crontab...
I had a cron job that I needed to run as root. At the time I thought that sticking it in /etc/crontab would be a good idea. However, I used the crontab command to edit /etc/crontab, which I guess is not standard procedure? Specifically, I configured /etc/crontab as my local user's crontab (i.e. sudo crontab /etc/crontab) then added my cron job as I would a local user crontab (i.e. sudo crontab -e).
Originally, my cron job looked like this:
30 * * * * root /my/batch/script &> /dev/null
After adding the new cron job I started seeing errors. Something to the effect of "can't find command root" or something similar. So I removed the 'root' user definition from the cron job and the job started running fine. However, because this is /etc/crontab, there are other system related cron jobs that have been defined to run under the root account (e.g. "17 * * * * root cd / && run-parts --report /etc/cron.hourly" runs as root, etc.). So these pre-existing system cron jobs, which up until now have been running smoothly, are now generating "can't find command root" errors. But I think that the system cron jobs _are_ successfully being run someplace because logrotate seems to be working.
So what I _think_ is happening is that /etc/crontab is being run twice: once as the system crontab, and once as my sudoed local user's crontab. When I run crontab -l I see nothing, but when I run sudo crontab -l I can see the contents of /etc/crontab. I am reluctant to delete my sudoed local user's crontab, because then in the process I would be deleting the system crontab, and I do not know how I should restore the system crontab's contents. (I am still not sure as to the most appropriate way to edit the system crontab).
How can I get out of this mess? I want /etc/crontab to go back to the way it was before--running _once_ as the system crontab. As for my new cron job, I'm willing to reconfigure it anywhere so long as I am still able to run it as root. Any ideas? (I am using Ubuntu 8.04 Server LTE)
Software :: Scheduling Backup In Crontab When Put This File In Crontab To Schedule The Backup Program It Wont Run?
Apr 9, 2011I have installed an application manager(monitoring application) on my linux server. Now, i need to have backup schedule for my application. The application itself has executive file to backup database.But when i put this file in my crontab to schedule the backup program it wont run!50 09 * * * root /opt/ME/AppManager9/bin/BackupMysqlDB.sh
View 1 Replies View RelatedFedora :: Write A Crontab Entry Using "crontab -e"
Jul 21, 2011I was trying to write a crontab entry using "crontab -e"
Code:
0 0 * * * cp /var/log/httpd/domains/mydomain.net.log
/home/admin/logs/mydomain.net.log
crontab is giving me this error:
Code:
"/tmp/crontab.XXXXfMOnRS":2: bad minute
errors in crontab file, can't install.
I've tried a dozen different values for the minute, but it's still giving me the same error.
General :: Crontab Can't Run / Why Is So?
Feb 1, 2010I want to run a crontab job but it isnt working. I am writing in the crontab file with crontab -e Then I am waiting time but it isnt working. code...
View 6 Replies View RelatedGeneral :: Crontab: 12 3 12 4 4 Cat /etc/passwd?
Jan 5, 2010If I configure a crontab like below.12 3 12 4 4 cat /etc/passwd I know that the cat command will get executed at the configured time. But where will the output of that command go?If it is something like below, then out put will be routed to /tmp/file1.12 3 12 4 4 cat /etc/passwd > /tmp/file1
View 4 Replies View RelatedGeneral :: How To Edit The Job Using Crontab
Jun 1, 2010I setup a cron job to trigger a script that I wrote every morning at 12:00 AM, but it does not seem to be working.
This is how I edit the job using crontab -e
Why it isn't triggering at 12:00 am every night. If I run the script manually it works just fine so I know is not the script causing troubles.
General :: How To Set Cronjob In /etc/crontab
Apr 10, 2011I know crontab -e sets a cronjob in /var/spool/cron but how do I set a cronjob to run from /etc/crontab? Is there a command used for this or would I have to manually edit a certain file?
View 2 Replies View RelatedGeneral :: Set Up A Crontab So That From Machine {which Is 192.168.0.99}?
Dec 5, 2010I want to set up a crontab so that from my machine {which is 192.168.0.99}whatever I create in a directory called "/information" {suppose some texts files}will be copied to 192.168.0.100 and 192.168.0.101's machine "/readinfo" directory at 5.30 pm. everyday."/readinfo" is directory which is accessible by all users on that machines {192.168.0.100 & 192.168.0.101}is this crontab right?30 5 * * * /bin/cp -rf /information/* 192.168.0.100:/readinfo30 5 * * * /bin/cp -rf /information/* 192.168.0.101:/readinfoI guess first these 100 and 101 machines should allow me {99} ssh connection without passowrd.
View 5 Replies View RelatedGeneral :: Clock Correction In GNU - Crontab?
Oct 20, 2010My laptop's clock (Acer Extensa 5220) seems to be slow. I've corrected it 5 minutes forward last week and now have just corrected minute forward again. Is there a program [apart from time servers] to correct clock properly, for example, by shifting it a bit every hour? Is there already a program to put it to crontab or I should hack up a script? Or I should check more things?
I have found that HW clock is right, but system time is slow: about a second each 2.1 hours.
root@vi-notebook:~# dmesg | egrep 'clock|unstable'
[ 0.103785] Switching to clocksource tsc
[ 0.265274] Marking TSC unstable due to TSC halts in idle
[ 0.265514] Switching to clocksource acpi_pm
[ 1.321408] rtc_cmos 00:09: setting system clock to 2010-10-30 00:10:48 UTC (1288397448)
Is placing "hwlock --hctosys" to crontab a right thing?
General :: Running Scripts From Crontab
Nov 1, 2010Im new to linux, using ubuntu 10.04. I have been playing around with crontab and have no problems scheduling a job which runs a script file containing the following command:
However, when I try to do the following in the script file nothing happens..
Similarly the following doesnt do anything either:
Is there something im missing?
General :: Commented Out Lines In Crontab Still Run?
Sep 20, 2010Silly question here. My crontab looks like this:
Quote:
0 22 * * * /usr/sbin/logrotate /var/log/VRTSralus/VRTSralus.logrotate
#0-59/10 * * * * /root/memmon.sh >> /var/log/memmon.txt
0 8 * * 1 /root/SHC.sh
#0 21 * * * /root/scripts/ralus_restart.sh > /dev/null 2>&1
As you can see two of the lines are commented out. However, both commented out commands are still running. I get emails stating that the RALUS agent restarted (another mystery since it's supposed to go to dev null according to the line above), and I can see that the memmon script is also running daily. Am I missing a step? Some other place I should be looking? Commenting out lines in your crontab is pretty much a no-brainer, so I appear to have less than no brain as this is a mystery to me.
General :: Crontab - Schedule Job To Run Every Minute?
Apr 14, 2010I am setting crontab to run a script every minute irrespective of the current hour's value:
Code:
[root@localhost bin]# ls
sec.php showTime.sh
[root@localhost bin]# crontab -l
1 * * * * /root/bin/showTime.sh
[root@localhost bin]#
But it is not working. Does the line mean: "Run this script every day at hour:01"?
General :: Crontab Shutdown Not Working?
Jan 2, 2010I'm running Ubuntu server 8.04.3 with eBox on a Dell GX280. I want to power off my box automatically every night, so as root I added a crontab entry "05 1 * * * /sbin/shutdown -P now". The command runs on schedule but most days the PC goes into a coma instead of powering off. It doesn't respond to key presses or mouse movement or Ctrl-Alt-Delete, I have to push its power button to complete the shutdown. I have tried a variety of alternatives such as "/sbin/shutdown -h" and "runlevel 0", they all behave the same way
View 14 Replies View RelatedGeneral :: Remove Line From Crontab?
Aug 26, 2010I have exactly same line like in crontab and I want to remove it via shell script. How to do it?
Example:
In crontab there are:
*/1 * * * * /home/testdir/testcron.sh >/dev/null 2>&1
line, how to remove it using shell ?
General :: Configuring Crontab In Rhel-5?
Oct 7, 2010I want to schedule a crontab for shutting down the oracle application services. I created crontab -e by login as oracleuser and added time and run-part(script path to execute the cron). But i unable to execute on the schedule time. exact procedure for creating and execution of cronjobs in RHEL-5.
View 4 Replies View RelatedGeneral :: Use Crontab -e To Set It Up Under The Root Account?
Jul 16, 2010I have set up my crontab and whilst Im logged in and it works (It runs my shell script), however when Im not logged in, the script does not run. Initially I set the time/date to 0 0 * * * (Midnight every day), as this did not work, I tested it with to 0 * * * * (every hour) whilst logged in and the script starts.
I use crontab -e to set it up under the root account..Im sure you dont have to be logged in for it to run?, but maybe im missing a step or just overdosing on Linux and need a holiday:-)
General :: Setup Do Not Run In The Blank Crontab
Aug 13, 2010I used to get the below when I ran crontab, but now its disappeared and my tasks I set up do not run in the blank crontab
#lxpr weekly cron job - Kickstart generated entry
0 1 * * 0 /opt/lxpr/lxpr -st /var/lxpr
#lxpr monthly job to clear down old dumps - Kickstart generated entry
0 1 28 * * find /var/lxpr -name "lxpr.`uname -n`*" -type d -a -mtime +30 -exec /bin/rm -r {} ;
General :: Crontab Fail To Start?
Jun 22, 2010I type this 10,20,30,40,50 * * * * /root/auto.pl
my log file
Jun 23 10:10:01 localhost crond[7702]: (root) CMD (/root/auto.pl)
Jun 23 10:20:01 localhost crond[12022]: (root) CMD (/root/auto.pl)
Jun 23 10:30:01 localhost crond[14610]: (root) CMD (/root/auto.pl)
Jun 23 10:40:01 localhost crond[18676]: (root) CMD (/root/auto.pl)
Jun 23 10:50:01 localhost crond[22402]: (root) CMD (/root/auto.pl)
Jun 23 11:01:01 localhost crond[29476]: (root) CMD (run-parts/etc/cron.hourly)
but my application doesnt run at all. my script is in perl language
General :: Crontab Either No Error Doesn't Run
Feb 16, 2010Either no error and it doesn't run (The scripts all run fine manually and in the cron.daily, cron.hourly, etc. directories.) If it does try to run it, it shows this: Feb 16 12:59:01 buddha crond[3638]: (*system*) BAD FILE MODE (/etc/crontab). Here's my crontab:
[code]...
General :: Crontab Not Running Php Script?
Apr 18, 2011I have a crontab that is supposed to run 2 PHP scripts but they never run.
30 */3 * * * php /var/www/html/mkimages.php
0 */3 * * * php /var/www/html/import_historic_data.php
Both of these files are owned by root, is it a permissions thing? How can I get get cron to run the files?
General :: Crontab Not Running Script?
May 17, 2010I put below line in a sh file
#!/bin/bash
HOSTS=172.16.14.1
COUNT=4
[code]...
General :: Crontab Is Not Running Script
Dec 20, 2010I'm trying to get myself familiar with bash scripting.I created a script to delete all files and folders in a specific directory, and made an entry in crontab.Crontab will not run the script, but I can run it manually.
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