How To Install mozjs52 on CentOS 8

mozjs52 is SpiderMonkey JavaScript library SpiderMonkey JavaScript library

Introduction

In this tutorial we learn how to install mozjs52 on CentOS 8.

What is `mozjs52`

SpiderMonkey is the code-name for Mozilla Firefox’s C++ implementation of JavaScript. It is intended to be embedded in other applications that provide host environments for JavaScript. mozjs52 52.9.0 2.el8 x86_64 6.6 M mozjs52-52.9.0-2.el8.src.rpm baseos SpiderMonkey JavaScript library https MPLv2.0 and MPLv1.1 and BSD and GPLv2+ and GPLv3+ and LGPLv2.1 and LGPLv2.1+ and AFL and ASL 2.0 SpiderMonkey is the code-name for Mozilla Firefox’s C++ implementation of JavaScript. It is intended to be embedded in other applications that provide host environments for JavaScript.

We can use yum or dnf to install mozjs52 on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install mozjs52.

Install mozjs52 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 mozjs52 using dnf by running the following command:

sudo dnf -y install mozjs52

Install mozjs52 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 mozjs52 using yum by running the following command:

sudo yum -y install mozjs52

How To Uninstall mozjs52 on CentOS 8

To uninstall only the mozjs52 package we can use the following command:

sudo dnf remove mozjs52

mozjs52 Package Contents on CentOS 8

/usr/lib/.build-id
/usr/lib/.build-id/43
/usr/lib/.build-id/43/ca706d58cdbf691b29d592faaf0ce935120307
/usr/lib64/libmozjs-52.so.0
/usr/lib64/libmozjs-52.so.0.0.0
/usr/share/doc/mozjs52
/usr/share/doc/mozjs52/README.html
/usr/lib/.build-id
/usr/lib/.build-id/d5
/usr/lib/.build-id/d5/f131f298f31284d8ee6b778f4c7df731a47f4e
/usr/lib/libmozjs-52.so.0
/usr/lib/libmozjs-52.so.0.0.0
/usr/share/doc/mozjs52
/usr/share/doc/mozjs52/README.html

References

[mozjs52 website](https://developer.mozilla.org/en-US/docs/Mozilla/Projects/SpiderMonkey https://developer.mozilla.org/en-US/docs/Mozilla/Projects/SpiderMonkey)

Summary

In this tutorial we learn how to install mozjs52 on CentOS 8 using yum and dnf.