10 More Discussions You Might Find Interesting
1. Solaris
There are two jobs in Solaris , Cron and at jobs..
I know how to disable or enable cron jobs.
How can I enable at jobs and disable it.
Kindly help.
Rj (2 Replies)
Discussion started by: jegaraman
2 Replies
2. Shell Programming and Scripting
Hi,
please help on this am trying to exec the below mentioned cron jobs
but its getting failed fro the past two days
###but when am trying to execte the cron by the times
23,29 18 * * * /export/home/inrvgo/thelak/China.sh
its getting exec properly
please help on this
#... (8 Replies)
Discussion started by: thelakbe
8 Replies
3. Linux
Hi,
I am a Linux administrator (newbie) in my company. The distro being used in the servers here is Centos 5.3
Just need to know, as a Linux administrator is it better for me to use /etc/crontab to set my cron jobs. I do not want to use the crontab -e to schedule my cron jobs.
That means... (1 Reply)
Discussion started by: anaigini45
1 Replies
4. Solaris
how to Put a cron entry which should be same script triggered on every Saturday and 1st of every month at 01.00 GMT.
0 2 1 * 6 --( At 2.00 GMT every sat & on 1st of every month)
the above syntax is correct?
Thanks (1 Reply)
Discussion started by: kurva
1 Replies
5. AIX
Hi,
We have several jobs scheduled in cron in AIX. Before every release
we need to comment those jobs and uncomment those after the release is over.
There are several accounts whose cron entries need to be commented.
Can anyone provide me with a script which can put a '#' before each line
in... (3 Replies)
Discussion started by: shibajighosh
3 Replies
6. Linux
I created a php script.
I'd like to have it run as a cron job every day at 10:30am. So i added
30 10 * * * /script.php to the cron file
Is it possible to run the script on the command line to test it out ? (1 Reply)
Discussion started by: dannyd
1 Replies
7. Solaris
I'm trying to run cron jobs to start any inhibited processes after a system reboot.
I can schedule th cron, but i'm confused as to how to incorporated the reboot, since reboot is scheduled at different times, once every month.
How can I write this to start every 15 min after after a reboot
... (2 Replies)
Discussion started by: Remi
2 Replies
8. Solaris
whats up,
Have some questions about cron jobs, I am fairly new to the unix os.
My cronjob sends all output to my mail, does anyone know how to redirect output to come out on the screen???
Thanks...... (6 Replies)
Discussion started by: lewisoco
6 Replies
9. UNIX for Dummies Questions & Answers
Where can someone find info on Cron Jobs? Very new to UNIX and the PC I inherited looks to have several of them. Looks like they are some kind of background program that runs automatically at specified times. Would like to delete some of them and know more about them. (6 Replies)
Discussion started by: dereckbc
6 Replies
10. Shell Programming and Scripting
hi folks,
I need an explanation on cron jobs with an example (4 Replies)
Discussion started by: vijaysabari
4 Replies
CRONTAB(1) BSD General Commands Manual CRONTAB(1)
NAME
crontab -- maintain crontab files for individual users (ISC Cron V4.1)
SYNOPSIS
crontab [-u user]
crontab [-elr]
DESCRIPTION
crontab is the program used to install, deinstall, or list the tables used to drive the cron(8) daemon in ISC Cron. Each user can have their
own crontab, and though these are files in /var/cron, they are not intended to be edited directly.
If the /var/cron/allow file exists, then you must be listed therein in order to be allowed to use this command. If the /var/cron/allow file
does not exist but the /var/cron/deny file does exist, then you must not be listed in the /var/cron/deny file in order to use this command.
If neither of these files exists, depending on the compiled in settings, only the super user will be allowed to use this command, or everyone
will be allowed to use this command. On NetBSD everyone is allowed to use this command.
The default maximum size for a crontab is 256 kilobytes, but this may be changed for all users on the system by putting the desired maximum
size (in bytes) in the /var/cron/maxtabsize file.
If the -u option is given, it specifies the name of the user whose crontab is to be tweaked. If this option is not given, crontab examines
``your'' crontab, i.e., the crontab of the person executing the command. Note that su(1) can confuse crontab and that if you are running
inside of su(1) you should always use the -u option for safety's sake.
The first form of this command is used to install a new crontab from some named file or standard input if the pseudo-filename ``-'' is given.
The -l option causes the current crontab to be displayed on standard output.
The -r option causes the current crontab to be removed.
The -e option is used to edit the current crontab using the editor specified by the VISUAL or EDITOR environment variables. After you exit
from the editor, the modified crontab will be installed automatically.
FILES
/var/cron/allow Optional list of users that are allowed to use crontab.
/var/cron/deny Optional list of users that are disallowed to use crontab.
/var/cron/maxtabsize Maximum size of crontab files. Defaults to 256 kilobytes.
/var/cron/tabs/ Directory containing the individual user crontab files, named after the user.
DIAGNOSTICS
A fairly informative usage message appears if you run it with a bad command line.
SEE ALSO
crontab(5), cron(8)
STANDARDS
The crontab command conforms to IEEE Std 1003.2 (``POSIX.2''). This new command syntax differs from previous versions of Vixie Cron, as well
as from the classic Version 3 AT&T UNIX syntax.
AUTHORS
Paul Vixie <vixie@isc.org>
BSD
May 6, 2010 BSD