Why does this cron entry do nothing? It works interactively.
58 23 * * * mydate=`date '+%Y%m%d'`;mv /opt/home/user/file /opt/home/user/file_$mydate (5 Replies)
HI all,
I would want to schedule a job to run every 2 weeks. In the mean time, i'm only able to schedule on every week. Is it possible to schedule 2 weeks on crontab?
Thank you. (3 Replies)
I set up a job to run a script in a certain directory to remove certain files. The script seems to run as my logs indicate but nothing happens. If I run the script manually then it removes the correct files. I'm now wondering if crontab doesnt have access to remove files from the directory I'm... (9 Replies)
My question is how to specify the one-time execution of a shell script in crontab?
For example: If I wanted to schedule shell "Test.sh" for one-time execution on December 13 at 8:00AM would it be as follows?
00 08 13 12 6 /usr/datatools/dtbackups/Test.sh > /usr/u/sybase_12.5/logs/Test.log &... (3 Replies)
Hello guys,
I have a server with Red Hat Enterprise Linux AS release 4 (Nahant Update 5), there i have a lot of users, im the root. I need to lock the use of crontab to the users, i mean, i dont want to give to the users the option to creat any crontab line, how can i do that?
I tried to... (4 Replies)
I have a user (xxx) who is allowed to run cron jobs when a job is
launched from cron is the .profile sourced in? I am not sure it is so I setup a cron job as this user to do the following:
35 15 * * 0-5 su - xxx -c "ksh ls -lt /tmp" > /tmp.out
and I am seeing the following error (see... (2 Replies)
I want to run a script on (say) the 4th friday every month. But if I include this line in the crontab :
45 9 22-28 * 5 echo '4th Friday'|mailx -s "Fri week 4" mike
it sends me mail if the date is 22-28, OR the day is friday. So I get mail every day for a week , and also every friday.
I... (2 Replies)
I need to run an script every 10th and 25th day in every month at 11pm.
the script name is /home/ss/automated.sh
I tried to execute the script every day and everytime with the below syntax. its not executing it from crontab.
* * * * * /home/ss/automated.sh
Any idea why it not... (6 Replies)
Hello,
I have scheduled the execution of a file (delete_oldv02) every hour with crontab and it works perfectly. See below the instruction written.
0 */1 * * * /home/delete_oldv02 >>/home/delete_oldv02.log
My first question is if I can add one more line to crontab.
I also would like to... (5 Replies)
Discussion started by: dcaccount
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)