at, batch, atq, atrm - queue, examine, or delete jobs for later execution
To execute a command at 13.00 hours $ at 13.00 at> df -Th > df.txt at> CTRL+D The command $ df -Th will executed and stored in df.txt at 13.00 hours
To list the jobs in queue with job numbers $ atq
To cancel the jobs in queue $ atrm <job_number>
To execute a command at 14.00 hours $ at 14.00 at> free -h > free.txt at> CTRL+D The command $ free -h will executed and stored in free.txt at 14.00 hours
check with $ atq
regards, T.Dhanasekar