Presuming you mean:
then that should be ok. What do you mean by 'it doesn't work'?
Using cron for this is a bit gross though as it will contribute towards the system beating.
A while loop with a sleep achieves the same thing without the beating.
Hello All!
I'm having problems with cron. First cron is running as a process when i send the top command and I am logged in as root. I type crontab -e to edit/create my cron job. What I'm trying to do is run a perl script on my server (the script does work, i know because I type perl script.pl... (2 Replies)
We have hundreds of threads involving cron and crontab. Rather than creating a post with dozens of links, I thought I'd just write up a tutorial with only a few selected links.
The Basics
cron is a daemon that runs periodic tasks. crontab is name of textfile that is used to control cron. ... (0 Replies)
I am having some issues with my cronjobs not running in solaris 10.
Cron is running:
~> ps -ef | grep cron
root 202 1 0 Jul 18 ? 0:01 /usr/sbin/cron
bender 1646 1562 0 01:57:49 syscon 0:00 grep cron
crontab -l lists the cronjob and I *think* its in the... (8 Replies)
I want to set up a file with crontab to run the cron deamon so I can use at to schedule jobs. I think the crontab file (or whatever you call it) has to be set up. Currently, I don't have a crontab file (I checked by typing sudo crontab -u myusername -l), and I don't know the syntax for creating... (6 Replies)
Hi,
How to add a cron job in /etc/crontab using a shell script.??:confused:
Actually the requirement is we need to run a script say, XXX.sh every 10 min through “cron”.
That can be achieved by adding the below code line in the /etc/crontab , (i.e., “crontab -e ” command to add this to the... (4 Replies)
Hi All,
I am trying to execute a python script from a user's crontab.
/home/user1/UDE/scripts/UdeManager.py
I am at /home/user1.
If I run the command "/home/user1UDE/scripts/UdeManager.py" from the users home directory its working fine.
But when I try to run from user's cron tab its... (3 Replies)
Hi,
I have a query related to UNIX Crontab scripts -
Issue: Server space on the db server got 100% full as a result of which the cron scripts did not run. The space utilization issue got resolved in the afternoon. The crons scheduled for a time post the resolution caught up. However the... (1 Reply)
Hi ,
I have scheduled the script using cron between 25-31 of the month.
My script will trigger the ETL job once file is available in Windows path between these days(every 2 hours between 26 - 30 of every month ).
So my question : "if the ETL job completes cron should stop the running the... (5 Replies)
Discussion started by: Jaganjag
5 Replies
LEARN ABOUT REDHAT
crond
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)