How To Install texlive-ifetex on CentOS 8

texlive-ifetex is Provides \ifetex switch

Introduction

In this tutorial we learn how to install texlive-ifetex on CentOS 8.

What is texlive-ifetex

The package provides the switch \ifetex which indicates whether e-TeX is available or not. The package can be loaded as LaTeX package using \usepackage{ifetex} or in plain TeX using \input ifetex. In either case it aborts silently if the \ifetex macro is already defined. The package’s test is whether \eTeXversion is defined as a primitive; if it is, the package assumes e-TeX features are available.

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

Install texlive-ifetex 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 texlive-ifetex using dnf by running the following command:

sudo dnf -y install texlive-ifetex

Install texlive-ifetex 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 texlive-ifetex using yum by running the following command:

sudo yum -y install texlive-ifetex

How To Uninstall texlive-ifetex on CentOS 8

To uninstall only the texlive-ifetex package we can use the following command:

sudo dnf remove texlive-ifetex

texlive-ifetex Package Contents on CentOS 8

/usr/share/licenses/texlive-ifetex
/usr/share/licenses/texlive-ifetex/lppl1.3.txt
/usr/share/texlive/texmf-dist/doc/latex/ifetex
/usr/share/texlive/texmf-dist/doc/latex/ifetex/README
/usr/share/texlive/texmf-dist/doc/latex/ifetex/ifetex.pdf
/usr/share/texlive/texmf-dist/tex/latex/ifetex
/usr/share/texlive/texmf-dist/tex/latex/ifetex/ifetex.sty

References

Summary

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