How To Install sleepenh on Debian 9
Introduction
In this tutorial we learn how to install sleepenh
on Debian 9.
What is sleepenh
sleepenh is:
sleepenh is an sleep program for using in 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.
There are three methods to install sleepenh
on Debian 9. We can use apt-get
, apt
and aptitude
. In the following sections we will describe each method. You can choose one of them.
Install sleepenh Using apt-get
Update apt database with apt-get
using the following command.
sudo apt-get update
After updating apt database, We can install sleepenh
using apt-get
by running the following command:
sudo apt-get -y install sleepenh
Install sleepenh Using apt
Update apt database with apt
using the following command.
sudo apt update
After updating apt database, We can install sleepenh
using apt
by running the following command:
sudo apt -y install sleepenh
Install sleepenh Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Debian. Update apt database with aptitude
using the following command.
sudo aptitude update
After updating apt database, We can install sleepenh
using aptitude
by running the following command:
sudo aptitude -y install sleepenh
How To Uninstall sleepenh on Debian 9
To uninstall only the sleepenh
package we can use the following command:
sudo apt-get remove sleepenh
Uninstall sleepenh And Its Dependencies
To uninstall sleepenh
and its dependencies that are no longer needed by Debian 9, we can use the command below:
sudo apt-get -y autoremove sleepenh
Remove sleepenh Configurations and Data
To remove sleepenh
configuration and data from Debian 9 we can use the following command:
sudo apt-get -y purge sleepenh
Remove sleepenh configuration, data, and all of its dependencies
We can use the following command to remove sleepenh
configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge sleepenh
Dependencies
sleepenh have the following dependencies:
References
Summary
In this tutorial we learn how to install sleepenh
package on Debian 9 using different package management tools: apt
, apt-get
and aptitude
.