sleep(1)                                                           sleep(1)




 NAME    [Toc]    [Back]
      sleep - suspend execution for an interval

 SYNOPSIS    [Toc]    [Back]
      sleep time

 DESCRIPTION    [Toc]    [Back]
      sleep suspends execution for time seconds.  It is used to execute a
      command after a certain amount of time, as in:

           (sleep 105; command)&

      or to execute a command periodically, as in:

           while true
           do
               command
               sleep 37
           done

 RETURN VALUE    [Toc]    [Back]
      sleep exits with one of the following values:

           0    The execution was successfully suspended for time seconds,
                or a SIGALRM signal was received.

           >0   If the time operand is missing, is not a decimal integer, is
                negative, or is greater than UINT_MAX, sleep returns with
                exit status 2.

 SEE ALSO    [Toc]    [Back]
      alarm(2), sleep(3C).

 STANDARDS CONFORMANCE    [Toc]    [Back]
      sleep: SVID2, SVID3, XPG2, XPG3, XPG4, POSIX.2


 Hewlett-Packard Company            - 1 -   HP-UX 11i Version 2: August 2003