How To Install tenshi on Ubuntu 21.04

One-liner install command

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

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

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

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

Before beginning this tutorial, you will need access to a server or computer running Ubuntu 21.04. This guide was written specifically with a server running Ubuntu 21.04 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 tenshi on Ubuntu 21.04. 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 tenshi 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 tenshi using apt by running the following command:

sudo apt -y install tenshi

Install tenshi using apt

Because tenshi is available in Ubuntu 21.04’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 tenshi using apt by running the following command:

sudo apt -y install tenshi

Install tenshi 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 Ubuntu 21.04. Update apt database with aptitude using the following command.

sudo aptitude update

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

sudo aptitude -y install tenshi

How to upgrade (update) a single package tenshi 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 tenshi, e.g. single package, you should use the following format with the apt-get command/apt command:

sudo apt-get --only-upgrade install tenshi

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.

sudo apt-get install tenshi

How To Uninstall tenshi from Ubuntu 21.04

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

sudo apt-get remove tenshi

Uninstall tenshi and all its dependencies

To uninstall tenshi and its dependencies that are no longer needed by Ubuntu 21.04, you can use the command below:

sudo apt-get -y autoremove tenshi

Remove tenshi with all configurations and data

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

sudo apt-get -y purge tenshi

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

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

sudo apt-get -y autoremove --purge tenshi

Extra info and code examples

Tenshi is a log monitoring program, designed to watch one or more log files for lines matching user defined regular expressions and report on the matches. The regular expressions are assigned to queues which have an alert interval and a list of mail recipients. Queues can be set to send a notification as soon as there is a log line assigned to it, or to send periodic reports. Additionally, uninteresting fields in the log lines (such as PID numbers) can be masked with the standard regular expression grouping operators ( ). This allows cleaner and more readable reports. All reports are separated by hostname and all messages are condensed when possible. The program reads a configuration file and then forks a daemon for monitoring the specified log files.

Conclusion

You now have a full guide on how to install tenshi using apt, apt-get and aptitude tools. Also, we showed how to update as a single package and different ways to uninstall the tenshi from Ubuntu 21.04.

See also: