Cron job checks

how i can check which cron job are running, or scheduled in future, how to rerun this, where its output is going etc

Run
crontab -l
05 1 * * * /home/mysql/admin/run_dailyTo check what cron jobs scheduled for the user.
The cron job script should be self-contained and coded to put output to specific logfile in your preferred directory. On screen output is usually blocked because no-one will be around to check them real time.

Similar Messages

Is it possible to have a Cron job in CPO to check the running status of a workflow

Is it possible to have a Cron job in CPO to check every hour to see if a particular workflow is running, if not trigger it by creating a alert, if yes- autokill

Hi Warren,
We don't want our process to expire and also not to execute twice at once. We have a provisioning wrapper workflow which is triggered one time by an alert and it runs endlessly by creating an alert at the end of each instance triggering another instance of the same unless CPO hangs or goes to stand by mode. Since we belong to service team, we don't have any kind of access to CPO DB or logs, so that possibility is ruled out. Just checking for alternatives.

How to take the cron job log in HP UX?

Hi,
How to take the cron job log in HP UX
I need to run a backup and other stuff everyday. How do I check and start cron service under HP-UX UNIX operating system? How do I write cron jobs?
A. Cron service is required to run jobs and tasks such as backup.
You must login as the root to run following commands. Each user that is using the cron service must have a cron configuration file in the /var/spool/cron/crontab directory. Also users are permitted if their name appeared in /var/adm/cron/cron.allow file
Task: Find out if cron is running under HP-UX
Type the following command at a shell prompt
# ps -ef | grep cron
Open /etc/rc.config.d/cron file
vi /etc/rc.config.d/cron
Set control variable to 1 to enable cron: CRON=1
Set control variable to 0 to disable: CRON=0
Close and save the file. To start or stop cron you can type the following command:
# /sbin/init.d/cron start <-- start cron
# /sbin/init.d/cron stop <-- stop cron
Task: HP-UX Start cron service
If cron is not running, simply type:
# cron
Task: Edit / create cron jobs
Type the following command to submit a cron job:
# crontab -e
List your cron file:
# crontab -l
Backup all your cron jobs:
# crontab -l > ~/backup.cron.jobs
Remove ALL cron job:
# crontab -r
Task: Crontab file format
Cron file format is as follows:
MIN HOUR DATE MONTH DAY /PATH/TO/COMMAND
0-59 0-23 1-31 1-12 0-6 /root/scripts/backup2tape.shEasy to remember crontab file format:
* * * * * command to be executed
| | | | |
| | | | ----- Day of week (0 - 7) (Sunday=0 or 7)
| | | ------- Month (1 - 12)
| | --------- Day of month (1 - 31)
| ----------- Hour (0 - 23)
------------- Minute (0 - 59)To run /root/script/backup at 23:00, every day, enter:
# crontab -e
Append following
0 23 * * * /root/script/backupRun foo job very weekday (MON-Fri) at 6am, enter:
0 6 * * 1-5 /root/script/backupFor more information refer to cron and crontab man pages.
Subscribe to our free e-mail newsletter or RSS feed to get all updates. You can Email this page to a friend.
Related Other Helpful FAQs:
What is Cron?
Linux Start and stop the cron or crond service
Run crontab Every 10 Minutes
Linux / UNIX Setup and run php script as a cron job
Stop Ubuntu / Debian Linux From Deleting /tmp Files on Boot
Discussion on This FAQDavid Says:
January 15th, 2008 at 12:21 am
You might note that all files normally found in /etc/init.d, /etc/rc*.d, and others are all in /sbin in HP-UX 10.20 and up.
Note too that your formatting is off in the description of the /etc/rc.config.d/cron file. Also, if you run /usr/bin/cron instead of /sbin/init.d/cron start, the /etc/rc.config.d/cron file is not used.
Regards,
Satya

I guess it would :)
btw, how did this piece miss from the contents pasted by the OP ?
The doc has given all details of CRON and missed where to see the logfiles. :)
****Added****
I tried man crontab in windows, i dont see it.i overlook most of the things, i would have done the same ;)
Edited by: Bobcatalog on Oct 23, 2008 9:40 AM

Need help with a cron job

What I want to do is run an Applescript every 6 hours and 1 minute. If the computer is asleep when the job comes due, I want it to execute the script and reset the counter. Can crontab do this? If so, how to set it up?

Gnarlodious wrote:
Then skip it, I can see there is no easy way.
I don't think it's that hard, though. Just a bit tricky. I was just a bit confused on what exactly you wanted.
I could write a stay-open Applescript application, but I wanted to avoid cluttering up the Dock just to run a command every 6 hours.
Nah, I wouldn't want that either.
If I were doing something like this and I wanted it to work like this:
1. Run every six hours, at 6 AM, noon, 6 PM, and midnight.
2. Run after waking up if the computer has been asleep and missed any of the times in between, say if you let the computer sleep thru the 6 AM job.
I'd do this:
1. Call the AppleScript periodically from a cron job. How often would be dependent on how tight you want the times to be to when you wake up.
2. Have the AppleScript save a text file somewhere with the time when it runs. That way, if your computer is asleep at 6 AM, the script could use this to decide if it missed running while it was asleep.
3. Have your script check this time and if it's over 6 hours, let the script do its thing. If not, then just exit, to try all this again the next time cron runs it.
Here's kind of a pseudo-code way of describing it:
check if it's 6:01, 12:01, 18:01, 00:01
if yes:
do your AppleScript business
save the current time in a file
exit
if it's not one of those times:
check if it's been over 6 hours since the AppleScript did its business
if yes:
do the AppleScript business
save the current time in a file
exit
if no:
exit
Then you could do two cron jobs:
1 */6 * * * /path/to/applescript
*/5 * * * * /path/to/applescript
The first one would run at your appointed times. The second would just run every 5 minutes to catch those times when the computer was asleep. The "5" could also be "10" for every ten minutes. Or whatever you decide you'd like.
I'd show you an AppleScript, but I'm really not so good at that. If a Perl script would help, I could whip one up pretty quickly, I think.
charlie

CRON job on mac

Hello,
Not quite the right category for this but don't think the answer would be found in the non server forum.
I would like to schedule a CRON job on 10.5 (not server), done it in older version, either I can't remember or it's changed... doesn OSX have crontab?
Every 1 minute I want to call a php function on a webserver (which doesn't allow CRON)....
m

Hi
On OSX Client its in /usr/lib. You should see an alias for cron and within that should be what you want. However you might be able to achieve what you want with launchd and its utility launchctl? Consult the manual pages for usage.
There is a specific Terminal and Command Line Forum over on the 10.4 Server Forum:
http://discussions.apple.com/forum.jspa?forumID=701
You could check this forum out as it does focus on the command line and applescript amongst other things:
http://discussions.apple.com/category.jspa?categoryID=162
Tony

Cron job ,every other monday

hello
i would like to schedule a cron job every other monday
-- OS info
[oracle@dev3 ~]$ uname -a
Linux dev3.pcst3.net 2.6.18-194.17.1.0.1.el5 #1 SMP Wed Sep 29 15:57:39 EDT 2010 x86_64 x86_64 x86_64 GNU/Linuxhere is what i have in for cron job , yes this shows every monday but i am looking for every other monday,it ran today(03/26),next runs should be 04/09 and 04/23 ....
# Bi-weekly report
30 11 * * 1 /u01/scripts/monday_query.sh > /u01/scripts/monday_query.log 2>&1here is what we have in monday_query.sh
#!/bin/ksh
# set -xv
. dbbash_profile
export ut=/u01/scripts/ut
export pass=`grep -i ls011 $ut/pwdfile | awk -F":" '{ print $2 }'`
sqlplus ls011/${pass} < /u01/scripts/monday_query.shany help is much appreciated to make this run every other monday
Please help

From the cron man page: http://unixhelp.ed.ac.uk/CGI/man-cgi?crontab+5
"Step values can be used in conjunction with ranges. Following a range
with ``/<number>'' specifies skips of the number's value through the
range. For example, ``0-23/2'' can be used in the hours field to spec-
ify command execution every other hour (the alternative in the V7 stan-
dard is ``0,2,4,6,8,10,12,14,16,18,20,22''). Steps are also permitted
after an asterisk, so if you want to say ``every two hours'', just use
``*/2''."
Or, create a flag file with 'touch ran_cron_job_last_monday' after a Monday that you ran the script.
Then throw a condition into your script to check for the file. If the file exists, remove it. If the file doesn't exist, then run your script and when finished, create the file again.
For example:
#! /bin/ksh
if [ -e ran_cron_job_last_monday ] ; then
rm -f ran_cron_job_last_monday
else
touch ran_cron_job_last_monday
exit 0
fi
... do here what your script is supposed to do ....
exit 0

[Solved] Have Cron Job Open Terminal Window

I want to run a ping script every morning to check the liveliness and latency of specific servers. The script itself works fine but I can't figure out how to have cron open up a terminal window so I can see the script running.
This is what I have so far:
#runs /home/bran/pingservers.sh everyday at 8:30 am
10 10 * * * env DISPLAY=:0 konsole -e ~/pingservers.sh
But it doesn't open anything I don't even know if the job is even executing.
Last edited by brando56894 (2013-05-20 14:25:42)

I am unsure how to get the script to open a terminal, but the journal should have some information on whether the script is running or not and if there are any errors.
brando56894 wrote:
I don't even think cron jobs are running at all. I changed my job to
1 * * * * /bin/echo hello world
and it hasn't done anything...
As far as the job above, I just wanted to note that you have it set to run on the first minute of every hour. If you were looking for every second minute, you would want the following:
*/1 * * * * /foo/bar
Last edited by BluMongoose (2013-05-14 22:01:48)

[SOLVED] Cron Job that starts every 30 minutes from boot

I wish to have a cron job that runs a script every 30 minutes from boot, without any users logging in.
I know about crontab -e, but I think that would I only run once i'm logged in. I've also heard about @reboot, but that would only run the script once.
RabbidRabbit
Last edited by rabbidrabbit (2012-01-31 20:14:13)

Cron jobs will run whenever the system is up, regardless of whether or not anyone is logged in.
I don't remember the syntax, but I know that at least some cron implementations have a way to run a job every 30 minutes, starting for the first time 30 minutes after reboot.
EDIT: I just checked the syntax for fcron, which is what I use, and it seems like doing @ 30 your/command/here will make it run every 30 minutes of uptime.
Last edited by kyla (2012-01-31 00:17:30)

Cron job help

hya m8s!
so i want to create a cron job that will do the following in order.
1. run pacman -Syu
2. run pacman -Scc
3. run lilo (incase of kernel upgrade)
i want this to run every day at 5am,
the problem is that i know what i want it to do i just have NO idea how to implement it. i have researched cron jobs a bit but i havent found an easy to understand way exec the above commands. one of my m8s suggested i use the "at" command but i dont think i can set that to run at a specified time every day. Please help if you can.
cheers,
cdk
(note: once ifigure out cron i want to start to try to figure out how to build packages. i have also read the wiki on this and still dont get it)

cdk wrote:
why is it a bad thing to do? seems like it would be a good thing so it keeps the system up to date right?
i figure that if i do it manually or not i still doing the same thing everyday. any info as to why this would be bad would be great. i def dont want to mess up my system.
Take KDE 3.3 to KDE 3.4 upgrade as an example:
Your way would have just updated KDE without considering possible side-effects. The recommended way in this case was removal prior to upgrade.
You would not have been able to follow those recommendations if a script would have done the job.
If you really feel the need to auto-upgrade everyday, I'd recommend excluding problematic packages (e.g. kernel. IMO that should only be upgraded with the user watching) and keeping that list up to date by checking with the ARCH news and boards...
greez
bernhard

Starting stoping cron job

How we can tell which cron jobs are running and how to start/stop them, give me example/command plz

I do not know of any articles off the top of my head, but just remember if you can create a non-interactive script to do the job then you can run it as a cron job.
Here are several types of cron jobs that we currently use:
1. Kick off nightly hot and weekly cold backups.
2. Gather statistics weekly (on just some databases)
3. Gather performance statistics (perfstat) when wanted.
4. Perform audit gathering/deletion jobs.
5. Check for errors in alert logs and trace files and send out emails if needed.
6. Check status of listeners and database processes to assure they are still running.
7. Move log files to archiving storage
We are going to eventually move a lot of these jobs to OEM Grid Control but until then cron is great.
Regards
Tim

A simple question?-how can I find out a cron job finishing time?

Hi, everyone:
I have a cron job for export, I know it starting time, how could I find its finishing time? anyway, I have check the log, but no answer.

at the end of the script append the end date and time to the log file.
echo "JOB COMPLETED AT `date`" >> x.log
$more x.log
JOB COMPLETED AT Mon Jan 22 16:04:16 EST 2007
As your job is an export, export dump timestamp would give you the end time. Do ls -ltr on the dump file, the date time should be the completed time of the export.
$ls -ltr exp_test.dmp
-rw-r--r-- 1 oracle dba 2048 Sep 11 14:19 exp_test.dmp
Message was edited by:
Ranga
Message was edited by:
Ranga

Cron job: grpck or grpconv?

This is a very general administration question. In archlinux (as in many other linux distributions and unix systems I have used in the past) there is a daily cronjob which runs pwck -r and grpck -r. When I look at their outputs sent to me by the internal mail system I often find that /etc/group and /etc/gshadow are not synchronized (generally there are new groups and users added to a certain group in /etc/group but not in /etc/gshadow). I can fix this easily with grpconv. However I am wondering if it is safe to replace grpck -r with grpconv as a daily cronjob. Would it be dangerous for some reason I am unable to foresee? Is there any reason why I should coordinate the two files by hand, or why I could want them to be out of sync?

Run
crontab -l
05 1 * * * /home/mysql/admin/run_dailyTo check what cron jobs scheduled for the user.
The cron job script should be self-contained and coded to put output to specific logfile in your preferred directory. On screen output is usually blocked because no-one will be around to check them real time.

Cron job not running - script uses rsync, ssh (with id_rsa)

Does anyone know how to get cron to run a rsync/ssh script which uses id_rsa for passwordless logins?
I have a backup script I have slaved for months over that works wonderfully when running it from the command line.
It uses rsync and connects with SSH (passwordless using ssh keys). I have setup id_rsa and id_rsa.pub for passwordless logins (this is my user account, and connects using root@ to the server)
As stated all works find when run from the command line. But when I setup a cron job to run this file (exact same line I run from the command line) it does not execute. Actually, it does run, as I have an email notifiction which sends to me. It is just the rsync/ssh part that does not run.
I have spent days and days trying to figure it out. No error messages occur, nothing. Took me a while to find out cron is emailing the user account on Lion the messages (not to a proper email address).
The error shows a permission denied, which I believe to be the cron user cannot use the id_rsa/ssh connection.
Cron is running the script as my user, the same I use on the command line. I even tried copying the id_rsa to the root user .ssh folder in case cron is running as root but that does not work either.
So does anyone know how to get cron to run this rsync/ssh script which used id_rsa for passwordless logins?
Thanks a lot

YES! Got it working, finally!
So the issue is indeed cron/launchd not being able to access the ssh-agent which holds the key.
So this is the solution...
Download keychain for Mac:
http://www.funtoo.org/wiki/Keychain
Then once its installed and configured, the script to run needs this added to the top:
eval `keychain --noask --eval id_rsa` || exit 1
Note I am using id_rsa whereas keychains instructions refer to id_dsa so I just changed it and it works OK.
When the script runs the first time it asks for the key password. Then it works from then on.
What I do not know yet is will I need to re-enter the password when I logoff/logon again. That will cause an issue as I auto restart the Mac every day which means if I am off for a few days backup will stop (can you see the madness in this issue!).

Cron job help- Need to run the Autobuddy command every night...

I have not written anything in the form of a Unix script for YEARS and YEARS. Our XServe was built in Advanced mode, currently running 10.5.4 Server. On this box, we are running Wiki and iChat. Since we built this box as an Advanced box the "Autobuddy" option was not available.
I have since enabled it at the command line, but I am told by Apple that there still needs to be a command run after every time a user logs in if you want others to Autobuddy. That command is this:
"sudo /usr/bin/jabber_autobuddy -m"
Now I think this would be pretty easy to setup as an automatic cron script, but like I said, I have not written something like this in forever. Not to mention, I am not 100% sure what needs to happen since running the script with an sudo command will prompt for the root password.
I was wondering if anyone would be able to help me write the script up, and give me some instructions on how to install it. I just want it run everyday, midnight is fine, I don't really care. All I know is that we have a dept of 150 people, and it grows and shrinks all the time. They can deal with a new user not being seen for 24-48 hours, I just want to get this automated.
Any helps would be GREATLY appreciated!
Thanks
Tom

If you want to keep it simple try [CronniX|http://www.abstracture.de/projects-en/cronnix] a graphical tool for setting up CRON jobs on OSX. Whilst I have not actually done an autobuuddy in this way, I cannot see any reason why it will not run as a Cron Job.
The proper way ideally would be to use the launchd service.
Something like this should work:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>org.jabber.dailyautobuddy</string>
<key>ProgramArguments</key>
<array>
<string>/usr/bin/jabber_autobuddy</string>
<string>-m</string>
</array>
<key>LowPriorityIO</key>
<true/>
<key><UserName></key>
<string>admin</string>
<key>StartCalendarInterval</key>
<dict>
<key>Hour</key>
<integer>0</integer>
<key>Minute</key>
<integer>05</integer>
</dict>
</dict>
</plist>
(not sure why, but tabs are not showing up, making this hard to read)
Message was edited by: Tim Harris

Schedule rman using cron job

I have scheduled a cron job to take rman backup of database everyday at 4PM. But I see that the empty backup.log file is getting generated while the script is not running. If I run the backup.sh script manually then the backup is running fine. The following are the scripts and the crontab details,
backup.sh script is as follows,
cd /u01/app/oracle/rmanbkp
rman target / <<EOF
run
allocate channel ch1 type disk format '/u01/app/oracle/rmanbkp/%d_%T_%s.bak';
backup database;
delete noprompt obsolete;
exit;
EOF
while the output of 'crontab -l' is
00 16 * * * /home/imsoracle/backup.sh > backup.log
Backup is not happening, what is wrong in my settings. Please advise.

Dear $ami Malik,
There is another option that you can use for RMAN scripting as shown below;
0 2 * * 2 export ORACLE_HOME=/oracle/product/10.2.0/db_1/ ;
/oracle/product/10.2.0/db_1/bin/rman cmdfile /db/optima/archive/OPTPROD/RMAN/backup_full.sh
log /db/optima/archive/OPTPROD/RMAN/backup_full.log
vals2:/home/oracle#cat /db/optima/archive/OPTPROD/RMAN/backup_full.sh
connect target sys/password@optprod
backup database format '/db/optima/archive/OPTPROD/backupset/DB_FULL_%d_%t_%s_%p';
backup archivelog all delete all input format '/db/optima/archive/OPTPROD/backupset/ARC_%d_%t_%s';
exit;So you can construct such backup strategy with the cmdfile and log options of the recovery manager.
Hope That Helps.
Ogan

Cron job checks

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