that If I am fire a crontab which is running myScriptThe crontab is runningNow if I change the source code of myScriptDo I need to restart the crontab, to take into effect mychanges Ie I want in the existing crontab to take my updated script
View 2 RepliesI 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 RelatedIm 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?
I 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?
I put below line in a sh file
#!/bin/bash
HOSTS=172.16.14.1
COUNT=4
[code]...
I'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.
View 2 Replies View RelatedI am having a shell script which runs perl jobs.The script is starting the perl jobs when it is executed manually from the command line , but when the same script runs from crontab it is not starting the perl jobs.I have these things in the begining of the script
. /etc/profile
export MDX_HOME=/home/entsms
source $MDX_HOME/.bash_profile
[code]....
I am planning on running a script once every five minutes, and the syntax that comes to mind in doing this is the following:
Code:
5 10 15 20 25 30 35 40 45 50 55 * * * * /apps/<script>.pl
Is there a better syntax to use to accomplish this task, or is the above example the way to go?
I'm having problems trying to restart gdm from crontab and I'm not sure what I'm doing wrong. Basically what I want to do is a 'logout' every morning before I get to work so that by the time I get to my computer I would just have to log back in and have a fresh gnome session.
The command I'm using to restart gdm is:
Code:
/usr/sbin/service gdm restart
If I run this command from a terminal as root it works.
To edit my crontab file I'm doing:
Code:
sudo crontab -u root -e
And adding the following line to it:
Code:
25 08 * * 1-5 /usr/sbin/service gdm restart
My understanding is that this should restart gdm every day of the work week (Mon-Fri) at 08:25. But for some reason this is not happening.
I also checked that my cron deamon is running by:
Code:
~$ service gdm status
gdm start/running, process 27156
Pidgin likes to randomly crash on me, and sometimes it takes me awhile to notice. So I thought why not make a script and cron job to see if pidgin is running and restart it if needed. Sounded easy but having all kinds of problems. Here's my cron line...
Code:
*/1 * * * * /home/justin/chkpdgn.sh >> /home/justin/test.log 2>&1
I run "tail -f /home/justin/test.log" to keep an eye on the cron output.
Here's the chkpdgn.sh script...
Code:
#!/bin/bash
SERVICE='pidgin'
if ps ax | grep -v grep | grep $SERVICE > /dev/null
then
echo "$SERVICE service running, everything is fine"
else
echo "$SERVICE is not running"
$SERVICE
fi
Running that works fine when I do it, but when cron does it pidgin never starts and I get this error...
Code:
pidgin is not running
error: line 15: bad flag alias index: 0
error: line 15: bad flag vector alias
error: line 16: bad flag alias index: 0
error: line 16: bad flag vector alias
That goes on for quite awhile up to like line 60000 and pidgin runs but doesn't show up in the me menu. Any way to restart pidgin when it crashes?
I am not an expert when it comes to crontabs and linux but i can survive in its world :P I've modified a script i found on the net to do a simple crontab job. Basically its a backup script (backup_auto.sh) that in the end of it, it updates the crontab also.
Code:
i just put the crontab job of the script....
if [ $CRONJOB -eq 1 ]
then
#Check if user can use crontab
[Code]...
I know for a fact that it doesnt run it because this .sh upload remotely some files for backup, and if i dont run it manually then i dont see any backups on the remote server
is 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 RelatedI have a problem using crontab. I have a C file which invokes a linux command. I want to execute the file using crontab. Its like whenever the system boots up and contents gets loads i want to execute this script. The problem is I don't know how to run the script using crontab. For eg if the file is present under /home/user/first.c . In order to execute this script whenever system starts wat wil be my command
View 7 Replies View RelatedCode...
I opened "crontab -e" in the Terminal and in nano I copied and pasted the first line of this copied script, leaving all the notated lines out. Each time I manually run changer by clicking and selecting "Run" it changes my Wallpaper but this does not happen automatically no matter how many times I reboot.
I have the following set up in my crontab:
Code:
# crontab -l
# m h dom mon dow command
*/5 * * * * /usr/bin/perl /usr/local/bin/perl/managed_arp_data.pl >> /var/log/arpdb.log
*/5 * * * * /usr/bin/perl /usr/local/bin/perl/infoblox_fixed_sync.pl >> /var/log/crossref.log
00 23 * * * /usr/bin/perl /usr/local/bin/perl/infoblox_host_sync.pl >> /var/log/host_sync.log
0 * * * * /usr/bin/perl /usr/local/bin/perl/infoblox_excl_sync.pl >> /var/log/excl_sync.log
None of these jobs is apparently running, however they did run on the 31st (yesterday), but not on the 30th or any other day during the last 10 days that I have logs for. I think I've set cron to run at log level 1, but I don't know where that log goes, I don't see anything like /var/log/cron
So, couple questions:
* If I do something like "sudo -s" to get a root prompt and then do a "crontab -e", which user does that crontab get executed as?
* Where should I look for cron logs?
* Anyone know why a job would run on the 31st, but not any other day?
Crontab Script Not Running?
View 4 Replies View RelatedCron seems to be running the script below (According to /var/log/syslog) but I'm not receiving the email it should send. This does work when I invoke it manually. checkraid (-rwxr-xr-x 1 root root)
Code:
#!/bin/bash
echo `/sbin/dmraid -s > /etc/check-raid/check_state`
index=0
while read line; do
[Code]...
I'm using crontab to start and stop music playback (its like start and end of a brake in school). The problem is that some of the entries should be run on even weeks and some on odd.
exp:
This should be played on even weeks
00 08 * * * audacious -p
10 08 * * * audacious -u
and this on odd
05 08 * * * audacious -p
15 08 * * * audacious -u
There are about 20 entries for even and 20 for odd. I found here on the forum that maybe this should work but for it is not working for me
00 08 * * * [[ $(expr `date +\%W` \% 2) = 0 ]] && audacious -p
If I put it like that its not working at all
Yes I have tried exporting my paths and variables aab still will not run my script. 'm sure I am doing something wrong.I have a shell script which runs a jar file. This is not working correctly. After reading around I have read this is commonly due to incorrect paths due to cron running via it's own shell instance and therefore does not have the same preferences setup as my profile does.here is what my script looks like today after several modifications:
Code:
#!/bin/bash --
. /root/.bash_profile
[code]...
I have a shell script which is configured for the user. The main task of the shell script is to email certain user with a particular result.
The shell script runs perfectly when run from a Konsole terminal and configured through a crontab generates empty entries.
Below is my crontab for my user.
Code:
# DO NOT EDIT THIS FILE - edit the master and reinstall.
# (/tmp/crontab.XXXXSyNyp1 installed on Wed Jan 6 09:14:14 2010)
# (Cron version V5.0 -- $Id: crontab.c,v 1.12 2004/01/23 18:56:42 vixie Exp $)
#!/bin/bash
[Code].....
Can I change the default path for any or all of the different crontab files?
Can they be changed independently? for example can the user mark get one path for cron jobs, Lynn get another, and root get yet a third, or are they always going to be the same?
How do I change them?
Hello fellow Linux users:
I know there are several crontab files on my computer. One each for each user, and it looks like one for root, maybe others?
I think there is only one cron handler that reads all the different crontab files and does what it is told.
If I do from my command line, I get:
Code:
mark@server:~$echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
If I schedule a similar command in my own crontab file by using
Code:
mark@server:~$crontab -e
with the following line:
[Code].....
Can we change cpu utilization if its have very high in running mode without stop that process.
View 1 Replies View RelatedWhat is the difference between the crontab located in /etc/crontab and the crontab that can be edited using crontab -e?
View 2 Replies View RelatedI am running Puppy from a usb in Windows 7 using Virtual Box and I can't get the 1280 x 800 screen resolution to work. The probe doesn't recognize my monitor initially in the video setup. When I choose this screen resolution in the xorgwizard it ignores the resolution I select and uses 1600 x 1200. If I try to reduce the resolution in the resolution changer, it decreases the window size but the desktop stays at the same resolution effectively cutting off the majority of the desktop from view. I have been trying the intel, radeon, vesa, and vmware drivers but none of them seem to work. Do I need to install a special video driver? I am using a unibody macbook.
View 3 Replies View Relatedi have installed dhcp,there i declared the subnet and network,i used command include "/etc/dhcpd.conf.jutu1"; to start and other files, but it show me this error when i want to restart the DHCP, if you need more information contact me, i have configured this file too jutu1, but it don't let me to restart dhcp from /etc/init.d/dhcpd restart, this show me this message
[Code]..
I just completed a clean install and update of Fedora 14 on a Dell Precision 490 (4G of RAM, Dual Xeon 5140 CPUs).The system has all of the current updates applied and seems to be running normally, but it will not complete a shutdown/poweroff or restart. It gets hung with Restarting... in the upper left corner of the screen and stays there until I force the system to power down.I have searched quite a bit for related problems but have come up empty. Its kind of hard to debug because the system does not respond when it is in this hung state and there does not appear to be any relevant info in /var/log that I can find.
View 3 Replies View RelatedI have triple monitors working on my 10.10 ubuntu system and they work for most things. Except k9copy and virtual box will cause x to restart. glxgears works fine.
xorg.conf
Code:
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 260.19.06 (buildd@yellow) Mon Oct 4 15:59:51 UTC 2010
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" RightOf "Screen1"
Screen 1 "Screen1" 0 0
Screen 2 "Screen2" RightOf "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "1"
EndSection .....
I need to change DNS server that I'm using from a provider to another.Let's just say I'm using a local DNS, and wanted to use Google's DNS.I'm using CentOS, so a friend of mine told me to directly change file:/etc/resolv.confand I already did it.My question is: Do I need to restart my network after changing this file?How do I know that I'm already using the new DNS instead of still connecting using my old DNS?
View 4 Replies View RelatedI 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)
I 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 Related