10 More Discussions You Might Find Interesting
1. 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
2. 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
3. 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
4. UNIX for Advanced & Expert Users
Hello,
Can anyone help me how to set any script as cron job. I have gone through all threads but not able to get the details. Appreciate your help.
I need to set test.pl to run on every Tuesday by 6am in the morning.
I do not the cron file which is defined.
Please help me out.
... (3 Replies)
Discussion started by: jam_prasanna
3 Replies
5. AIX
Hi guys and gals,
I have this script that run perfectly when executed manually. If I place it in a cron to run on a schedule, it fails. Error is:
exec(): 0509-036 Cannot load program /usr/local/bin/getlogical because of the following errors:
0509-150 Dependent module... (7 Replies)
Discussion started by: bbbngowc
7 Replies
6. Shell Programming and Scripting
I am trying to set up a simple cron job but it won't work
Is there a special directory that the target program has to run from ??
I noticed that all the other jobs in the file were in /usr/local/bin but even when I put my target script in there it didn't run. Anyone have any idea why ??
... (2 Replies)
Discussion started by: zapper222
2 Replies
7. UNIX for Dummies Questions & Answers
Hi,
How to monitor whether a cron job is running or errored out..?other than checking the process using ps-aef
how to enter the cron job which throws the output in 1 file and errors in other file. i remember it can be done using >1 and >2 ..but not sure..
any expert..please help!! (1 Reply)
Discussion started by: rujus
1 Replies
8. 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
9. 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
10. UNIX for Advanced & Expert Users
Hi,
Anyone please let me know how to add an entry for crontab while there are few of entries already in.
When I execute crontab -e, the entries which are added already are displayed. But, I need to add one more entry to the crontab and then after that I need to remove the entry without... (1 Reply)
Discussion started by: minar
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)