sleepenh

Sleep until a given date with subsecond resolution

Description

sleepenh is a sleep program for shell scripts that need to perform a loop that repeats at a regular time interval, without cumulative errors.

It supports microsecond resolution.

You can also specify the time you need between two calls of sleepenh.

Here follows an usage example to clarify its purpose. This example sends 'A' to ttyS0 every 1.2 seconds.

#!/bin/sh

# does not wait (or wait 0), just to get initial timestamp

TIMESTAMP=$(sleepenh 0)

while true; do

# send the byte to ttyS0

echo -n "A" > /dev/ttyS0;

# wait until the required time

TIMESTAMP=$(sleepenh $TIMESTAMP 1.200);

done

For more details, please read the manpage.

Upload more screenshots

Please help extend the collection of screenshots. Just make a screenshot and upload it here. You don't need to register or anything.

Hint: upload an image here from your clipboard with Ctrl-V

Install this software package

If the package is available for the distribution you are currently using on your computer then install the software by clicking on…