sleep suspend execution for a specified time	Command
	SYNOPSIS DESCRIPTION EXAMPLES DIAGNOSTICS PORTABILITY SEE ALSO

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SYNOPSIS

sleep seconds

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DESCRIPTION

The sleep command continues running until the specified number of seconds has elapsed. sleep can delay execution of a program or produce periodic execution in conjunction with shell commands.

The seconds argument can be either a number of seconds or a more general time description of the form nhnmns, with nh, nm, and s being optional.

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EXAMPLES

sleep 20h10m

sleeps for 20 hours and 10 minutes (or 72600 seconds).

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DIAGNOSTICS

Possible exit status values are:

0

Successful completion.

2

Failure because seconds value was not specified or is invalid (for example, invalid format).

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PORTABILITY

POSIX.2. x/OPEN Portability Guide 4.0.

The nhnmns argument format is an extension to the POSIX.2 standard.

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SEE ALSO

Commands:

date, time