crontab questions

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# 1  
Old 08-07-2002
crontab questions

Hi Guys

May I know where can I find information about crontab, how to use it, examples etc? I really don't know how does it works and how to use it. Thanks! Smilie
# 2  
Old 08-08-2002
Tools about crontab

Now I give a example:
5 18 * * 1-5 /usr/lib/sa/sa2 -s 8:00 -e 18:01 -i 1200 -A

and I give some comment:
the first column is miniue [0-59];
the second is hour[0-23];
the third is day[1-31];
the fouth is month[1-12];
the fifth is week[0-6] ,0 means sunday.
and the later is command that you want to run when time elapses.

for more information,you could use command "man crontab" in the UNIX shell.

# 3  
Old 08-12-2002
Keep in mind crontab is specific to the user. This is not a GLOBAL setting for all!!!
# 4  
Old 08-12-2002
One would presume you've looked at the man page?
# 5  
Old 08-13-2002
The home directory for crontab is


In this directory u will find two very important files namely

cron.allow and cron.deny

if your user id is present in cron.allow then u are eligible for setting a crontab ... if its present in cron.deny, then permission is denied and u have to contact your administrator to move your id to cron.allow.

# 6  
Old 08-14-2002
Actually /etc/cron.d is main cron directory

/etc/cron.d/cron.deny contain those files you mentioned above

/var/spool/cron/crontabs "is a spooling area for cron"
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