Reference: sleep
Author: Ellen Siever, Stephen Spainhour & Nathan Patwardhan
Date: 1999-07-02T01:38:05Z

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| Chapter 5 Function Reference |

## sleep

    sleep n

Causes the script to sleep for n seconds, or forever if no argument is given. It may be interrupted by sending the process a `SIGALRM`. The function returns the number of seconds actually slept. On some systems, the function sleeps till the "top of the second," so, for instance, a `sleep 1` may sleep anywhere from 0 to 1 second, depending on when in the current second you started sleeping.

Reference: sin |  | Reference: socket