At Command in Linux

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At Command in Linux

We hope this post helped you to find out At Command in Linux

at is a command-line utility that permits you to schedule instructions to be executed at a selected time. Jobs created with at are executed solely as soon as.

On this article, we’ll clarify find out how to use at and its companion utilities batch, atq, atrm to view, delete, and create jobs to be executed at a later time.

installing in at #

Relying on the distribution, at might or might not be current in your Linux system.

If at will not be put in, you may simply set up it utilizing the bundle supervisor of your distribution.

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Install at on Ubuntu and Debian

sudo apt update 
sudo apt install at

Install at on CentOS and Fedora

sudo yum install at

As soon as this system is put in ensure that atd, the scheduling daemon is working and set to start out on boot:

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sudo systemctl enable --now atd

How you can Use the at Command

The simplified syntax for the at command is as follows:

The at command takes the date and time (runtime) if you need to execute the job as a command-line parameter, and the command to be executed from the usual enter.

Let’s create a job that might be executed at 9:00 am:

at 09:00

When you hit Enter, you’ll be offered with the at command immediate that almost all typically begins with at>. You additionally see a warning that tells you the shell wherein the command will run:

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warning: commands will be executed using /bin/sh
at>

Enter one or more command you want to execute:

tar -xf /home/linuxize/file.tar.gz

When you’re done entering the commands, press Ctrl-D to exit the prompt and save the job:

at> <EOT>
job 4 at Tue May  5 09:00:00 2020

The command will show the job quantity and the execution time and date.

There are additionally different methods to go the command you need to run, in addition to coming into the command within the at immediate. A method is to make use of echo and pipe the command to at:

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We hope this post helped you to find out At Command in Linux . You may also want to see — Kill Command in Linux