How To Install multiwatch on CentOS 8

multiwatch is Forks and watches multiple instances of a program in the same context

Introduction

In this tutorial we learn how to install multiwatch on CentOS 8.

What is `multiwatch`

Multiwatch forks multiple instance of one application and keeps them running. It is made to be used with spawn-fcgi, so all forks share the same fastcgi socket (no web server restart needed if you increase/decrease the number of forks), and it is easier than setting up multiple daemontool supervised instances.

We can use yum or dnf to install multiwatch on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install multiwatch.

Install multiwatch on CentOS 8 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install multiwatch using dnf by running the following command:

sudo dnf -y install multiwatch

Install multiwatch on CentOS 8 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install multiwatch using yum by running the following command:

sudo yum -y install multiwatch

How To Uninstall multiwatch on CentOS 8

To uninstall only the multiwatch package we can use the following command:

sudo dnf remove multiwatch

multiwatch Package Contents on CentOS 8

/usr/bin/multiwatch
/usr/lib/.build-id
/usr/lib/.build-id/6d
/usr/lib/.build-id/6d/d722bdbcd703d829305f625832326c608a6e7d
/usr/share/doc/multiwatch
/usr/share/doc/multiwatch/README
/usr/share/licenses/multiwatch
/usr/share/licenses/multiwatch/COPYING
/usr/share/man/man1/multiwatch.1.gz

References

multiwatch website

Summary

In this tutorial we learn how to install multiwatch on CentOS 8 using yum and dnf.