![]() Specify a relative time expression by adding a plus sign ( +), the amount, and one of the following: The day after the current day.įor example, the following command schedules an echo command invocation at 5PM: echo "hello" | at 5PM Indicates the current day and time and immediate execution. Specify a full year, month, day, hour, minute, and optionally seconds. Specify an abbreviated year, month, day, hour, minute, and optionally seconds. The available absolute time expressions are: Schedule a job using absolute time expressions or time expressions relative to the time of setting the job. Schedules a job for the time specified by the argument. The time format is Thu Feb 20 14:50:00 1997.Ĭats the specified job, showing its contents in standard command-line output. Shows the job execution time before reading the job. Deletes the scheduled jobs, identified by their job number. If the user is superuser, lists all users' pending jobs.Īn alias for atrm. Schedules jobs and executes them in a batch queue when the system load level average is below 1.5.Īn alias for atq. Reads the job from the specified rather than from standard input.Īn alias for batch. Requires a configured email address for the user that scheduled the job. Appointing a queue to atq causes it to show only jobs pending in that queue.Įmails the user after the job has completed, even if there was no output. The batch load average rules apply once it is time to execute the job. Submitting a job to a queue with an uppercase letter treats the job as submitted to batch. Queues with higher letters run with increased niceness. The a queue is the default for at and the b queue is the default for batch. Uses the specified consisting of a single letter, ranging from a- z and A- Z. Prints the program version number to standard output. The options allow you to view or delete scheduled jobs and customize at command job scheduling. ![]() The syntax for the at command is: at runtime
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