I have the following crontab entry.
0,30 00-16 * * *
This job runs every 30 minutes between the hours of 12:00AM and 4:00PM. How can I have it stop at 4:30PM instead?
Thank you,
David (3 Replies)
i have set the below one in cronta, expecting that it would run every fourth saturday for Jan, Apr, Jul and Oct,
but it comes out that it run everyday between 21 to 27.
Please help!!
00 01 21-27 1,4,7,10 6 my_job (1 Reply)
I have a script which shoud run after every 30 minutes.Though I know abt crontab, unfortunately I dont have access/authorization to use crontab in my terminal.
Could any one pls let me know how to schedule the script without crontab ?
Regards
Prashant:) (3 Replies)
Hi,
I have a script which will query the DB and added to crontab at 1,2,6,7 AM everyday and sends a email if count is 0.
Now the problem is, if crontab is disabled it doesn't sends a mail.
Please tell me how can I handle this situation in the script. (2 Replies)
All,
I'm a newbie with crontab and I need your help with schedule a cold-backup running every Sunday at 7am except 1st of the month.
Thank you so much. (2 Replies)
Hi,
My script is in $home/bin/sample.sh.
I want to run the script for 3times a day,
first execution will be at 08:00 am.
second execution will be at 16:00 pm
third will be at 23:59 pm.
what will be the entry with this requirement?? (1 Reply)
Hello all, I am a complete newbie to Unix and therefor also to this forum. I have an assignment for Uni, and need your help to understand something.
I need to use crontab and tar to schedule a weekly backup of a folder and its contents. I want the tarball to be stored in the users/float... (6 Replies)
Hi All,
How to schedule crontab on all day except sunday and monday means from tuesday to saturday at 06:00AM. (3 Replies)
Discussion started by: Riverstone
3 Replies
LEARN ABOUT REDHAT
crontab
CRONTAB(1) General Commands Manual CRONTAB(1)NAME
crontab - maintain crontab files for individual users (V3)
SYNOPSIS
crontab [ -u user ] file
crontab [ -u user ] { -l | -r | -e }
DESCRIPTION
Crontab is the program used to install, deinstall or list the tables used to drive the cron(8) daemon in Vixie Cron. Each user can have
their own crontab, and though these are files in /var, they are not intended to be edited directly.
If the allow file exists, then you must be listed therein in order to be allowed to use this command. If the allow file does not exist but
the deny file does exist, then you must not be listed in the deny file in order to use this command. If neither of these files exists,
then depending on site-dependent configuration parameters, only the super user will be allowed to use this command, or all users will be
able to use this command.
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(8) can confuse crontab and that if you are running
inside of su(8) 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.
SEE ALSO crontab(5), cron(8)FILES
/etc/cron.allow
/etc/cron.deny
STANDARDS
The crontab command conforms to IEEE Std1003.2-1992 (``POSIX''). This new command syntax differs from previous versions of Vixie Cron, as
well as from the classic SVR3 syntax.
DIAGNOSTICS
A fairly informative usage message appears if you run it with a bad command line.
AUTHOR
Paul Vixie <paul@vix.com>
4th Berkeley Distribution 29 December 1993 CRONTAB(1)