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Source: sleepenh
Section: utils
Priority: optional
Maintainer: Nicolas Schier <nicolas@fjasle.eu>
Build-Depends: debhelper-compat (= 13)
Standards-Version: 4.7.0
Rules-Requires-Root: no
Vcs-Browser: https://salsa.debian.org/debian/sleepenh
Vcs-Git: https://salsa.debian.org/debian/sleepenh.git
Package: sleepenh
Architecture: any
Depends:
${misc:Depends},
${shlibs:Depends}
Description: Sleep until a given date with subsecond resolution
sleepenh is a sleep program for shell scripts that need to
perform a loop that repeats at a regular time interval, without
cumulative errors.
.
It supports microsecond resolution.
.
You can also specify the time you need between two calls
of sleepenh.
.
Here follows an usage example to clarify its purpose. This
example sends 'A' to ttyS0 every 1.2 seconds.
#!/bin/sh
# does not wait (or wait 0), just to get initial timestamp
TIMESTAMP=$(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.
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