How To Install pngcrush.x86_64 on Amazon Linux 2

In this tutorial we learn how to install pngcrush.x86_64 in Amazon Linux 2. pngcrush.x86_64 is Optimizer for PNG (Portable Network Graphics) files

Introduction

In this tutorial we learn how to install pngcrush.x86_64 on Amazon Linux 2.

What is pngcrush.x86_64

%{pngcrush} is an optimizer for PNG (Portable Network Graphics) files. It can be run from a commandline in an MSDOS window, or from a UNIX or LINUX commandline. Its main purpose is to reduce the size of the PNG IDAT datastream by trying various compression levels an PNG filter methods. It also can be used to remove unwanted ancillary chunks, or to add certain chunks including gAMA, tRNS, iCCP, and textual chunks.

We can use yum to install pngcrush.x86_64 on Amazon Linux 2. In this tutorial we discuss both methods but you only need to choose one of method to install pngcrush.x86_64.

Install pngcrush.x86_64 on Amazon Linux 2 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

After updating yum database, We can install pngcrush.x86_64 using yum by running the following command:

sudo yum -y install pngcrush.x86_64

How To Uninstall pngcrush.x86_64 on Amazon Linux 2

To uninstall only the pngcrush.x86_64 package we can use the following command:

sudo yum remove pngcrush.x86_64

pngcrush.x86_64 Package Contents on Amazon Linux 2

/usr/bin/pngcrush
/usr/share/doc/pngcrush-1.7.59
/usr/share/doc/pngcrush-1.7.59/ChangeLog.html

References

Summary

In this tutorial we learn how to install pngcrush.x86_64 on Amazon Linux 2 using yum.