UNIX/Linux - CRON Question..

If I want to run a script oracheck.sh every 10 minutes I can edit my crontab using "crontab -r"
0,10,20,30,40,50 * * * * /opt/oracle/bin/oracheck.sh

But can I create a file in /etc/cron.d called oracheck and have this
# cat /etc/cron.d/oracheck

Does the file in cron.d work the same way ...??? if not how can this be interpreted in /etc/cron.d ..???

Who is Participating?
woolmilkporcConnect With a Mentor Commented:
The content of the files under /etc/cron.d must adhere to the system crontab syntax (/etc/crontab) which means that the 6th column must contain a username under whose credentials the command should be executed. Columns 1-5  are of the same format as in any user crontab.

In fact, the files under /etc/cron.d are treated as extensions of /etc/crontab.

You must be root to edit/create such a crontab file.

0,10,20,30,40,50 * * * * oracleuser /opt/oracle/bin/oracheck.sh
Gerwin Jansen, EE MVETopic Advisor Commented:
On your first remark: crontab -r removes your crontab entry, with crontab -e you edit your crontab file. As which user do you want the script to run?
serialbandConnect With a Mentor Commented:
If you put it in /etc/ there's an extra entry for the user to run it as
*/10 * * * * oracle /opt/oracle/bin/oracheck.sh

Depending on your linux distro, you could have one or more of the following.
 /etc/cron.d ---> used by packages

 /var/spool/cron/crontabs ---> user crontab
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.