12-29-2004
i guess ..... by simply commenting crontab entries by #
will not trigger cron jobs.
to edit cron entries ... do 'crontab -e '
and do comment crontab entries.
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
can anybody explain the usage of CRON for adding a cron job. please provide an example also for better understanding !!!
Thanks (1 Reply)
Discussion started by: skyineyes
1 Replies
2. Solaris
I run cron in solaris 10 zone. One cron job which syncing files to nfs mounted on container, creates after finishing another cron proccess(/usr/sbin/cron), and after 100 existing cron proccesses next cron job will not start. It's too weird for me, I'm not able to solve this problem. Theoretically... (3 Replies)
Discussion started by: ron76
3 Replies
3. UNIX for Dummies Questions & Answers
Hi all,
I am not the unix person but have to disable cron job on the server
I typed crontab -l to list the job there is one job
then i tried crontab -e and got one result 100 ( i do not know what that means)
how can i disable the job to run i want to disable the job.
Please show me... (3 Replies)
Discussion started by: patdev
3 Replies
4. Shell Programming and Scripting
Hi all,
Does anyone know if it is possible to enable/disable a cron job within a script?
I currently have a cron job which runs every minute but now it seems that sometimes I would like to turn this job off if a condition is met. I would then like to re-enable the job at a later date.
... (5 Replies)
Discussion started by: pxy2d1
5 Replies
5. Shell Programming and Scripting
Hi all,
Pretty new to CRON but have been messing with Ubuntu for a while now
Here is the situation/problem I have run into you.
I currently run a very basic back procedure by executing a daily CRON job which copies all data from one directory to a USB drive & date stamps the copy:-
cp... (2 Replies)
Discussion started by: 2scoops
2 Replies
6. Solaris
Hi ,
I have removed a cron for particular user , but cron job seems to be running even after the cron entry is removed. The purpose of the cron was to sendmail to user ( it uses mailx utility )
I have restarted cron and sendmail service still user is getting mail alerts from the cron job. And... (4 Replies)
Discussion started by: chidori
4 Replies
7. Shell Programming and Scripting
Hi
I have a requirement to write a shell script,that will check the all commented job in cron job.Please help !! (2 Replies)
Discussion started by: netdbaind
2 Replies
8. Shell Programming and Scripting
Hi,
1)
If some job supposed to run on 1st of every month at 7 AM
In cron job when we have a blackout on the 1st ( i.e when 1st falls on a sunday ) how can we make the job run the next business day?
2) How can we run a job on 25th of every quarter 7 AM(jan,apr,jul,oct)
And if 25th... (5 Replies)
Discussion started by: System Admin 77
5 Replies
9. Shell Programming and Scripting
Guys, is there a script or command?
how to disable cron emails, but only for logrotate only not for other logs (3 Replies)
Discussion started by: kenshinhimura
3 Replies
LEARN ABOUT NETBSD
crontab
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