How To Install wdiff on CentOS 8

wdiff is Compare files on a word per word basis

Introduction

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

What is wdiff

The GNU wdiff program is a front end to diff for comparing files on a word per word basis. A word is anything between whitespace. This is useful for comparing two texts in which a few words have been changed and for which paragraphs have been refilled. It works by creating two temporary files, one word per line, and then executes diff on these files. It collects the diff output and uses it to produce a nicer display of word differences between the original files.

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

Install wdiff 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 wdiff using dnf by running the following command:

sudo dnf -y install wdiff

Install wdiff 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 wdiff using yum by running the following command:

sudo yum -y install wdiff

How To Uninstall wdiff on CentOS 8

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

sudo dnf remove wdiff

wdiff Package Contents on CentOS 8

/usr/bin/mdiff
/usr/bin/unify
/usr/bin/wdiff
/usr/bin/wdiff2
/usr/lib/.build-id
/usr/lib/.build-id/74
/usr/lib/.build-id/74/6a9721a16b3507439a617e0f01fa2c299fc9b8
/usr/lib/.build-id/92
/usr/lib/.build-id/92/ea93ecfd48221964bca6bfe4ba80a1efecffcc
/usr/lib/.build-id/bd
/usr/lib/.build-id/bd/dccc6f87a9d24673ff3443991652056bab702e
/usr/lib/.build-id/e4
/usr/lib/.build-id/e4/823db1f997950a7ea85c7b899461ab786b5369
/usr/share/doc/wdiff
/usr/share/doc/wdiff/ABOUT-NLS
/usr/share/doc/wdiff/AUTHORS
/usr/share/doc/wdiff/BACKLOG
/usr/share/doc/wdiff/ChangeLog
/usr/share/doc/wdiff/NEWS
/usr/share/doc/wdiff/README
/usr/share/doc/wdiff/THANKS
/usr/share/doc/wdiff/TODO
/usr/share/doc/wdiff/html
/usr/share/doc/wdiff/html/Compatibility.html
/usr/share/doc/wdiff/html/Efficiency.html
/usr/share/doc/wdiff/html/Experimental-History.html
/usr/share/doc/wdiff/html/Experimental.html
/usr/share/doc/wdiff/html/Overview.html
/usr/share/doc/wdiff/html/diff-Compatibility.html
/usr/share/doc/wdiff/html/index.html
/usr/share/doc/wdiff/html/mdiff-invocation.html
/usr/share/doc/wdiff/html/mdiff.html
/usr/share/doc/wdiff/html/unify-invocation.html
/usr/share/doc/wdiff/html/unify.html
/usr/share/doc/wdiff/html/wdiff-Compatibility.html
/usr/share/doc/wdiff/html/wdiff-Examples.html
/usr/share/doc/wdiff/html/wdiff-invocation.html
/usr/share/doc/wdiff/html/wdiff.html
/usr/share/info/wdiff.info.gz
/usr/share/licenses/wdiff
/usr/share/licenses/wdiff/COPYING
/usr/share/locale/ca/LC_MESSAGES/wdiff.mo
/usr/share/locale/cs/LC_MESSAGES/wdiff.mo
/usr/share/locale/da/LC_MESSAGES/wdiff.mo
/usr/share/locale/de/LC_MESSAGES/wdiff.mo
/usr/share/locale/en@boldquot/LC_MESSAGES/wdiff.mo
/usr/share/locale/en@quot/LC_MESSAGES/wdiff.mo
/usr/share/locale/en_GB/LC_MESSAGES/wdiff.mo
/usr/share/locale/es/LC_MESSAGES/wdiff.mo
/usr/share/locale/et/LC_MESSAGES/wdiff.mo
/usr/share/locale/fi/LC_MESSAGES/wdiff.mo
/usr/share/locale/fr/LC_MESSAGES/wdiff.mo
/usr/share/locale/ga/LC_MESSAGES/wdiff.mo
/usr/share/locale/gl/LC_MESSAGES/wdiff.mo
/usr/share/locale/hu/LC_MESSAGES/wdiff.mo
/usr/share/locale/id/LC_MESSAGES/wdiff.mo
/usr/share/locale/it/LC_MESSAGES/wdiff.mo
/usr/share/locale/ms/LC_MESSAGES/wdiff.mo
/usr/share/locale/nb/LC_MESSAGES/wdiff.mo
/usr/share/locale/nl/LC_MESSAGES/wdiff.mo
/usr/share/locale/pl/LC_MESSAGES/wdiff.mo
/usr/share/locale/pt_BR/LC_MESSAGES/wdiff.mo
/usr/share/locale/ro/LC_MESSAGES/wdiff.mo
/usr/share/locale/ru/LC_MESSAGES/wdiff.mo
/usr/share/locale/sk/LC_MESSAGES/wdiff.mo
/usr/share/locale/sl/LC_MESSAGES/wdiff.mo
/usr/share/locale/sv/LC_MESSAGES/wdiff.mo
/usr/share/locale/tr/LC_MESSAGES/wdiff.mo
/usr/share/locale/uk/LC_MESSAGES/wdiff.mo
/usr/share/locale/vi/LC_MESSAGES/wdiff.mo
/usr/share/locale/zh_CN/LC_MESSAGES/wdiff.mo
/usr/share/locale/zh_TW/LC_MESSAGES/wdiff.mo
/usr/share/man/man1/mdiff.1.gz
/usr/share/man/man1/unify.1.gz
/usr/share/man/man1/wdiff.1.gz
/usr/share/man/man1/wdiff2.1.gz

References

Summary

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