how to use 'at' command

kuldeep · 12-08-2011, 04:25 AM

i have a one file ./query.sh which i wanted to run on a specified time via using 'at' command but its not giving me any respond. any idea for the same so please tell me.

corp769 · 12-08-2011, 05:27 AM

Well could you tell us what you did so far, and how you configured it to run?

kuldeep · 12-13-2011, 05:33 AM

Hi corp769,

I used at +time +filename then ctrl+d then i got a job number.
but on the certain time period the given task was not schedule.

zQUEz · 12-13-2011, 05:52 AM

using a RHEL system, the following is the syntax I use:

Quote:

at 06:50 -f ~/file.to.run.sh

make sure your script has the relevant path and env. variable to run it.
Look at

Quote:

man at

for further information.

kuldeep · 12-13-2011, 05:55 AM

Hi zQUEZ,
thanks for your update but i did the same.
later i found that i haven't permission for this eventhough i tried same with sudo command but the result same. Do you have any idea how could i run it?

zQUEz · 12-13-2011, 05:57 AM

how do you know you don't have permissions?
Do you have an /etc/at.deny and/or /etc/at.allow defined? If so, why not use your sudo rights to modify that?
Do you have sudo rights?

kuldeep · 12-13-2011, 06:00 AM

zQUEz,

There is no such type of the file i'd found. I read from man command if i haven't such type of the file at.allow or at.deny then i can run this command or haven't the permission for the same.
But thanks for your co-operation.

zQUEz · 12-13-2011, 06:38 AM

If you don't have permission to use at, you should get the following when you try and queue a command:

Quote:

You do not have permission to use at.

Is your "atd" service running? if it wasn't, you should get the following when you try and queue a command:

Quote:

Can't open /var/run/atd.pid to signal atd. No atd running?

What does the command `atq` return?
What is the actual `at` command you are typing at the command line?