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Introduction

Use the at command to automatically execute a job only once at a specified time.

at

The format for the at command is:

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at -m -q queuename time date
at -r job
at -l

The table shows the options you can use to instruct the cron process on how to execute an at job.

Option Description
-m Sends mail to the user after the job has finished
-r job Removes a scheduled at job from the queue
-q queuename Specifies a specific queue
time Specifies a time for the command to execute
-l Reports all jobs scheduled for the invoking user
date Specifies an optional date for the command to execute, which is either a month name followed by a day number or a day of the week

For example, to create an at job to run at 9:00 p.m. to locate and verify the file type of core files from the /export/home directory, perform the command:

```bash

at 9:00 pm

at> find /export/home -name core -exec file {} \; >> /var/tmp/corelog at>