at.txt

使用于OS/2下的小工具的C源程序,使用于OS/2下的小工具的C源程序

                                                AT [DUAL MODE]
     
     NAME AT - Start a program at a specified time.
     
     SYNTAX
     
     at OR
     at time "command with parameters" OR
     at /F at-file
     
     USAGE
     
     At is  used to start programs at a given time of the day.
     It support  two time formats. The first list the absolute
     time  in  hh:mm:ss  -format,  where  hh=hour,  mm=minute,
     ss=second. The time is parsed from left to right. That is
     a two  part time  represents hh:mm  and a  one part  time
     represents hours only.
     
     The second  format is given relative to the current time.
     This format is identical to the first format, except that
     it starts with a plus (+).
     
     At can  also be  given a  list of  times and command in a
     file. The  filename is given with the /F option. When the
     command line  is empty, the at command reads its input by
     default from the at.dat-file.
     
     EXAMPLES
     1) Start dir command 10 seconds from now.
     at +00:00:10 dir
     2) Tell me to go to dinner a eleven o'clock.
     at 11:00 "popup The time has come foor all good men to go
     to the aid of their cafeteria."
     
     
     
     SEE ALSO
     until, AT-file format