How To Install qtsingleapplication on Fedora 34

qtsingleapplication is Qt library to start applications only once per user Qt library to start applications only once per user

Introduction

In this tutorial we learn how to install qtsingleapplication on Fedora 34.

What is `qtsingleapplication`

For some applications it is useful or even critical that they are started only once by any user. Future attempts to start the application should activate any already running instance, and possibly perform requested actions, e.g. loading a file, in that instance. The QtSingleApplication class provides an interface to detect a running instance, and to send command strings to that instance. qtsingleapplication 2.6.1 41.fc34 x86_64 41 k qtsingleapplication-2.6.1-41.fc34.src.rpm fedora Qt library to start applications only once per user http GPLv3 or LGPLv2 with exceptions For some applications it is useful or even critical that they are started only once by any user. Future attempts to start the application should activate any already running instance, and possibly perform requested actions, e.g. loading a file, in that instance. The QtSingleApplication class provides an interface to detect a running instance, and to send command strings to that instance.

We can use yum or dnf to install qtsingleapplication on Fedora 34. In this tutorial we discuss both methods but you only need to choose one of method to install qtsingleapplication.

Install qtsingleapplication on Fedora 34 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

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

sudo dnf -y install qtsingleapplication

Install qtsingleapplication on Fedora 34 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

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

sudo yum -y install qtsingleapplication

How To Uninstall qtsingleapplication on Fedora 34

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

sudo dnf remove qtsingleapplication

qtsingleapplication Package Contents on Fedora 34

/usr/lib/.build-id
/usr/lib/.build-id/6a
/usr/lib/.build-id/6a/6b710155b047df8a6aef5f4cd4e3c905c544c9
/usr/lib/libQtSolutions_SingleApplication-2.6.so.1
/usr/lib/libQtSolutions_SingleApplication-2.6.so.1.0
/usr/lib/libQtSolutions_SingleApplication-2.6.so.1.0.0
/usr/share/doc/qtsingleapplication
/usr/share/doc/qtsingleapplication/README.TXT
/usr/share/licenses/qtsingleapplication
/usr/share/licenses/qtsingleapplication/LGPL_EXCEPTION
/usr/share/licenses/qtsingleapplication/LICENSE.GPL3
/usr/share/licenses/qtsingleapplication/LICENSE.LGPL
/usr/lib/.build-id
/usr/lib/.build-id/de
/usr/lib/.build-id/de/cd44076d15b4709bf56fe22659647576e0c539
/usr/lib64/libQtSolutions_SingleApplication-2.6.so.1
/usr/lib64/libQtSolutions_SingleApplication-2.6.so.1.0
/usr/lib64/libQtSolutions_SingleApplication-2.6.so.1.0.0
/usr/share/doc/qtsingleapplication
/usr/share/doc/qtsingleapplication/README.TXT
/usr/share/licenses/qtsingleapplication
/usr/share/licenses/qtsingleapplication/LGPL_EXCEPTION
/usr/share/licenses/qtsingleapplication/LICENSE.GPL3
/usr/share/licenses/qtsingleapplication/LICENSE.LGPL

References

[qtsingleapplication website](http://doc.qt.digia.com/solutions/4/qtsingleapplication/qtsingleapplication.html http://doc.qt.digia.com/solutions/4/qtsingleapplication/qtsingleapplication.html)

Summary

In this tutorial we learn how to install qtsingleapplication on Fedora 34 using yum and dnf.