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 com-
     mand 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).