How To Install sng on Fedora 34

sng is Lossless editing of PNGs via a textual representation

Introduction

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

What is `sng`

SNG (Scriptable Network Graphics) is a minilanguage designed specifically to represent the entire contents of a PNG (Portable Network Graphics) file in an editable form. Thus, SNGs representing elaborate graphics images and ancillary chunk data can be readily generated or modified using only text tools. SNG is implemented by a compiler/decompiler called sng that losslessly translates between SNG and PNG.

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

Install sng 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 sng using dnf by running the following command:

sudo dnf -y install sng

Install sng 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 sng using yum by running the following command:

sudo yum -y install sng

How To Uninstall sng on Fedora 34

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

sudo dnf remove sng

sng Package Contents on Fedora 34

/usr/bin/sng
/usr/lib/.build-id
/usr/lib/.build-id/b7
/usr/lib/.build-id/b7/6b6dbd23ff8e6927fd3e9eae2bc30ad585099b
/usr/share/doc/sng
/usr/share/doc/sng/NEWS
/usr/share/doc/sng/README
/usr/share/doc/sng/TODO
/usr/share/licenses/sng
/usr/share/licenses/sng/COPYING
/usr/share/man/man1/sng.1.gz

References

sng website

Summary

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