07-12-2010
There is much variety in cron. Please post your Operating System and version.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Dear all
How can I schedule the cronjob to be run sometime at every first Sunday at every month? I have the edit the cronjob every month now, thanks (2 Replies)
Discussion started by: shanemcmahon
2 Replies
2. Shell Programming and Scripting
Hi ,
i need to reboot a server during 2nd and 4th saturday every month. i have come up with the below cron
30 17 8-14 * * if ; then /rebootscript; fi # to reboot every second saturday
30 17 22-28 * * if ; then /rebootscript; fi # to reboot every fourth saturday
I am wondering why it... (3 Replies)
Discussion started by: chidori
3 Replies
3. Solaris
I have deleted a particular cronjob couple of months ago but the jb is still running every sunday, even though it is not present in /var/spool/cron/crontabs/root file.
Please assist. (6 Replies)
Discussion started by: prash358
6 Replies
4. Shell Programming and Scripting
Hi,
Please can someone help me in getting first sunday date of a month.
i_year=`date +%Y`
ny_first_sun_nov=`cal 10 $i_year | sed '/^$/d' |head -3 |tail -1| rev | cut -c1`
This works good if the first sunday has a value but not if it is blank and first sunday falls on second week.
... (17 Replies)
Discussion started by: infyanurag
17 Replies
5. UNIX for Dummies Questions & Answers
Hello,
Can you please help me out in creating a cronjob that runs every 3rd business day of the month.
Thanks (2 Replies)
Discussion started by: AReddy
2 Replies
6. UNIX for Dummies Questions & Answers
Hello,
I wanted to set Crontab for 4th and 25th of every month at 5:00 PM.
Script should take previous month and current year as command line arguement like...
/home/test1.sh -f ABCD 03 2014
so above script will run on 4th and 25th April 2014 but argument should be like previous month... (11 Replies)
Discussion started by: ajju
11 Replies
7. Shell Programming and Scripting
Hi All,
I need to set up cronjob for every third sunday of the month.
here i have seen one example for 4th sunday for every month in another post and it looks perfect.can anyone please help me to understand this and help me to get the setup for third sunday of every month.Thanks.
this is... (7 Replies)
Discussion started by: netdbaind
7 Replies
8. Shell Programming and Scripting
Hello All,
I have script which needs to be scheduled in crontab which needs to be run only on the first sunday of the quarterly months (March, June, September,Dec).
Can anyone please help me out on this.
Thanks,
Arun. (13 Replies)
Discussion started by: Arun1992
13 Replies
9. Shell Programming and Scripting
Hi ALL,
I have been testing this script to run for every last Sunday of the month,looks like month which have 5 sunday (july 2016 )is not passing this and failing every time.
Here is what I am using,
current_date=31
echo " CURRENT DAY -> $current_date"
if
... (2 Replies)
Discussion started by: netdbaind
2 Replies
10. AIX
Hi,
Actually scheduled my test scripts on test severs as shown below. They are supposed to run on 3rd sunday of every month.
Unfortunately it ran on 2nd sunday of the month (suspecting that it will run every sunday). I am sorry if I miss something. Could you please let me know if I did any... (1 Reply)
Discussion started by: System Admin 77
1 Replies
CRON(8) System Manager's Manual CRON(8)
NAME
cron - clock daemon
SYNOPSIS
auth/cron [-c]
DESCRIPTION
Cron executes commands at specified dates and times according to instructions in the files /cron/user/cron. It runs only on an authentica-
tion server. Option -c causes cron to create /cron/user and /cron/user/cron for the current user; it can be run from any Plan 9 machine.
Blank lines and lines beginning with # in these files are ignored. Entries are lines with fields
minute hour day month weekday host command
Command is a string, which may contain spaces, that is passed to an rc(1) running on host for execution. The first five fields are integer
patterns for
minute 0-59
hour 0-23
day of month 1-31
month of year 1-12
day of week 0-6; 0=Sunday
The syntax for these patterns is
time : '*'
| range
range : number
| number '-' number
| range ',' range
Each number must be in the appropriate range. Hyphens specify inclusive ranges of valid times; commas specify lists of valid time ranges.
To run the job, cron calls host and authenticates remote execution, equivalent to running rx host command (see con(1)). The user's profile
is run with $service set to rx.
Cron is not a reliable service. It skips commands if it cannot reach host within two minutes, or if the cron daemon is not running at the
appropriate time.
EXAMPLES
Here is the job that mails system news.
% cat /cron/upas/cron
# send system news
15 8-17, 21 *** helix /mail/lib/mailnews
%
SOURCE
/sys/src/cmd/auth/cron.c
SEE ALSO
con(1), rc(1)
CRON(8)