12-13-2008
Execution problems with crontab
I need your help please
Inin a production system i found crontab entries was removed because i typed crontab -l with username corasc and didn't show anything.
i asked the administrador to restored the mentioned crontab, he restored the crontab:
The problem is when restored the crontab file is not executing any entry:
What happenned:?
i checked up the /usr/lib/cron/cron.allow and the username corasc is included, also checkup the /usr/lib/cron/cron.deny and it doesn exist
i checked up the crontab file and permissions and:
ls -lrt /var/spool/cron/crontabs/corasc
-r-------- 1 root colombia 1072 Dec 4 02:50/var/spool/cron/crontabs/corasc
BEFORE BEING REMOVED THE CRONTAB, IT WAS WORKING, si i show you the crontab lines
corasc@altamira00 : corasc > crontab -l
#Logs maintainance
0 0 * * * /usr/bin/find /export/app/CO/rasc/log/xa -name "*.trc" -mtime +2 -exec rm -f {} \; > /dev/null 2>&1
0 0 * * * /usr/bin/find /export/app/CO/rasc/log/ULOG -name "ULOG." -mtime +2 -exec rm -f {} \; > /dev/null 2>&1
0 0 * * * /usr/bin/find /export/app/CO/rasc/log/MAS "*.log" -mtime +2 -exec rm -f {} \; > /dev/null 2>&1
# Generacion Pines
00 2 * * * /export/app/CO/rasc/scr/lanza_generacion_pines.sh > /dev/null 2>&1
# Informes
0 3 1 * * /export/app/CO/rasc/scr/Informe_Tarjetas.ksh > /dev/null 2>&1
52 05 08 * * /export/app/CO/rasc/scr/Informe_Tarjetas.ksh > /export/app/CO/rasc/scr/log_Tarjetas.txt > /dev/null 2>&1
# Generacion de estadisticas
5 0 * * * /export/home/corasc/scripts/EstadisticasTUX.ksh > /export/app/CO/rasc/log/EstadisticasTUX.log > /dev/null 2>&1
I'd appreciate your help thanks
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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)