sleep(1)

NAME

     sleep - suspend execution for an interval

SYNOPSIS

     sleep time

DESCRIPTION

     The sleep utility will suspend execution for  at  least  the
     integral number of seconds specified by the time operand.

OPERANDS

     The following operands are supported:

     time  A non-negative decimal integer specifying  the  number
           of seconds for which to suspend execution.

EXAMPLES

     Example 1: Suspending command execution for a time

     To execute a command after a certain amount of time:

     example% (sleep 105; command)&

     Example 2: Executing a command every so often

     example% while true
     do
             command
             sleep 37
     done

ENVIRONMENT VARIABLES

     See environ(5) for descriptions of the following environment
     variables  that affect the execution of sleep: LANG, LC_ALL,
     LC_CTYPE, LC_MESSAGES, and NLSPATH.

EXIT STATUS

     The following exit values are returned:

     0     The execution was successfully suspended for at  least
           time  seconds,  or  a SIGALRM signal was received (see
           NOTES).

     >0    An error has occurred.

ATTRIBUTES

     See attributes(5) for descriptions of the  following  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | SUNWcsu                     |
    |_____________________________|_____________________________|
    | Interface Stability         | Standard                    |
    |_____________________________|_____________________________|

SEE ALSO

     wait(1),  alarm(2),  sleep(3C),  wait(3UCB),  attributes(5),
     environ(5), standards(5)

NOTES

     If the sleep utility receives a SIGALRM signal, one  of  the
     following actions will be taken:

        o  Terminate normally with a zero exit status.

        o  Effectively ignore the signal.

     The sleep utility will take  the  standard  action  for  all
     other signals.