First entry schedules the first hour
Second entry hours 1 thru' 23
NOTE: This schedules every day, ie,7 days a week.
If you're new to cron also note that you must set all variables needed in your script. Cron knows NOTHING about variables set on interactive login such as those set in .profile.
Ideally, DON'T edit crontabs directly otherwise you may need to wait up to 24 hrs for the job to run.
Use the proper crontab tools if you can.
Hi All
I am trying to run a .sh file from cron but its not performing its intended purpose, though the same sh file works fine when triggered manually.Following mail I recieve when it tries to run the script.
*********************************************************
To: wlsdev05
Subject:... (16 Replies)
Hi All ,
We have few scripts which uses common environment/path setting variables.
Now instead of putting classpath , framework,java_home ..... etc. in all the script, can we make a file with all common settings which can be envoked by the scripts while running. If yes , say setting file is... (3 Replies)
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)
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)
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)
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
LEARN ABOUT REDHAT
cron
CRON(8) System Manager's Manual CRON(8)NAME
cron - daemon to execute scheduled commands (Vixie Cron)
SYNOPSIS
cron
DESCRIPTION
Cron should be started from /etc/rc or /etc/rc.local. It will return immediately, so you don't need to start it with '&'.
Cron searches /var/spool/cron for crontab files which are named after accounts in /etc/passwd; crontabs found are loaded into memory. Cron
also searches for /etc/crontab and the files in the /etc/cron.d/ directory, which are in a different format (see crontab(5)). Cron then
wakes up every minute, examining all stored crontabs, checking each command to see if it should be run in the current minute. When execut-
ing commands, any output is mailed to the owner of the crontab (or to the user named in the MAILTO environment variable in the crontab, if
such exists).
Additionally, cron checks each minute to see if its spool directory's modtime (or the modtime on /etc/crontab) has changed, and if it has,
cron will then examine the modtime on all crontabs and reload those which have changed. Thus cron need not be restarted whenever a crontab
file is modified. Note that the Crontab(1) command updates the modtime of the spool directory whenever it changes a crontab.
SEE ALSO crontab(1), crontab(5)AUTHOR
Paul Vixie <paul@vix.com>
4th Berkeley Distribution 20 December 1993 CRON(8)