How To Install jless on Debian 11

In this guide, we’ll discuss How To Install jless on Debian 11. Also, we will demonstrate how to uninstall and update jless.

One-liner install command

For those in a hurry, here's a one-line installation command:

sudo apt-get update && sudo apt -y install jless

But if you are interested in the detailed steps with descriptions, the following information is for you.

What is jless and what are the ways to install it?

Before beginning this tutorial, you will need access to a server or computer running Debian 11. This guide was written specifically with a server running Debian 11 in mind, although it should also work on older, supported versions of the operating system.

Also, make sure you are running a regular, non-root user with sudo privileges configured on your server. When you have an account available, log in as your non-root user to begin.

There are several ways to install jless on Debian 11. You can use (links are clickable):

In the following sections, we will describe each method in detail. You can choose one of them or refer to the recommended one.

Install jless using apt-get

First, update apt database with apt-get using the following command.

sudo apt-get update

After updating apt-get database, You can install jless using apt by running the following command:

sudo apt -y install jless

Install jless using apt

Because jless is available in Debian 11’s default repositories, it is possible to install it from these repositories using the apt packaging system.

To begin, update apt database with apt using the following command.

sudo apt update

After updating apt database, You can install jless using apt by running the following command:

sudo apt -y install jless

Install jless 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 11. Update apt database with aptitude using the following command.

sudo aptitude update

After updating aptitude database, You can install jless by running the following command:

sudo aptitude -y install jless

How to upgrade (update) a single package jless using apt-get?

First, you will need to update packages index. Run update command as usual:

sudo apt-get update

Next, to upgrade only the jless, e.g. single package, you should use the following format with the apt-get command/apt command:

sudo apt-get --only-upgrade install jless

Note that this command will not install any new packages! If you wish to install the package if it doesn't exist you may leave out --only-upgrade part.

How To Uninstall jless from Debian 11

To uninstall only the jless package you can execute the following command:

sudo apt-get remove jless

Uninstall jless and all its dependencies

To uninstall jless and its dependencies that are no longer needed by Debian 11, you can use the command below:

sudo apt-get -y autoremove jless

Remove jless with all configurations and data

To remove jless configuration and data from your system you can run the following purge command:

sudo apt-get -y purge jless

Remove jless completely (configurations, data and all of its dependencies)

And lastly, you can run the next command to remove absolutely everything related to jless package, e.g.: configurations, data and all of its dependencies. Just use this command:

sudo apt-get -y autoremove --purge jless

Extra info and code examples

Jless is a program similar to more (1), but which allows backward movement in the file as well as forward movement. Also, jless does not have to read the entire input file before starting, so with large input files it starts up faster than text editors like vi (1). Jless uses terminfo, so it can run on a variety of terminals. There is even limited support for hardcopy terminals. Jless supported ISO 2022 code extension techniques and Japanese codes.

  • Maintainer: unknown
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Conclusion

You now have a full guide on how to install jless using apt, apt-get and aptitude tools. Also, we showed how to update as a single package and different ways to uninstall the jless from Debian 11.

See also:

How To Install jless on CentOS 8

How To Install jless on Ubuntu 22.04

How To Install jless on Ubuntu 21.04

How To Install jless on Debian 11

How To Install jless on Fedora 34

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