# at(1)

    NAME
         at - execute commands at a later time

    SYNOPSIS
         at time [month day] [file]

    EXAMPLES

         at 2315 Jan 31 myfile
                             # Myfile executed Jan 31 at 11:15 pm

         at 0900             # Job input read from stdin

         at 0711 4 29        # Read from stdin, exec on April 29

    DESCRIPTION

         At prepares a file to be executed later at the specified time by creating
         a  special  entry  in  /usr/spool/at.   The  cron  daemon  takes  care of
         executing these jobs.  It checks to see if  any  files  in  /usr/spool/at
         should  now  be  run,  and  if  so,  it  runs  them and then puts them in
         /usr/spool/at/past.  The name of the file created in /usr/spool/at by  at
         is YY.DDD.HHMM.UU (where YY, DDD, HH, and MM give the time to execute and
         UU is a unique number).  Note that when the command runs, it will not  be
         able  to  use  standard  input  unless specifically redirected.  Standard
         output will be mailed to the owner of the job.

    SEE ALSO
         cron(8).