I have a rhel 4 update 4 system. User cron jobs are not running, nothing is logged anywhere.

[root@adcbkpadm01 ~]# crontab -u bkpops -l
25 10 * * * /usr/local/bkpops/sbin/grabNBUjobs >/usr/local/bkpops/logs/cron.out 2>&1

[root@adcbkpadm01 ~]# ls -l /usr/local/bkpops/sbin/grabNBUjobs
-rwxrwxr-- 1 bkpops bkpops 4159 Jul 24 10:09 /usr/local/bkpops/sbin/grabNBUjobs

As a test I had a simple script in place that merely touch's a file in /tmp. This file never gets created. Absolutely nothing is logged to /var/log/messages or /var/log/cron

I do see my edits to the bkpops user crontab in /var/log/cron:
Jul 24 10:20:56 adcbkpadm01 crontab[15860]: (root) BEGIN EDIT (bkpops)
Jul 24 10:20:59 adcbkpadm01 crontab[15860]: (root) REPLACE (bkpops)
Jul 24 10:20:59 adcbkpadm01 crontab[15860]: (root) END EDIT (bkpops)

/etc/cron.allow did not exist, so I created it and added bkpops. (/etc/cron.deny existed previously but contained no users)

I then searched google and saw a lot of people having this issue and supposedly this solved there problem:

Modify /etc/pamd.d/crond:
CHANGE
account required pam_access.so
TO
account required pam_access.so accessfile=/etc/security/access-cron.conf
AND
touch /etc/security/access-cron.conf

This did not solve my problem.

Any ideas?

Is the script file's execute bit turned on? Can you run the script from a command line in a terminal?

first change the permission of the file .

1. "chmod 755 /usr/local/bkpops/sbin/grabNBUjobs"
2.try to run that command from the shell prompt.
3.if it is yes , then try to run through cron.
4.place this thing to cron file " 25 10 * * * /usr/local/bkpops/sbin/grabNBUjobs > /usr/local/bkpops/logs/cron.out 2>&1 "
4.Remember every time u r changing the cron file u should restart the cron service .
5. try this command " ps afx | grep grabNBUjobs "

i hope it will work ......

enjoy
jitan