How To Install flex on Rocky Linux 8
Introduction
In this tutorial we learn how to install flex
on Rocky Linux 8.
What is flex
The flex program generates scanners. Scanners are programs which can recognize lexical patterns in text. Flex takes pairs of regular expressions and C code as input and generates a C source file as output. The output file is compiled and linked with a library to produce an executable. The executable searches through its input for occurrences of the regular expressions. When a match is found, it executes the corresponding C code. Flex was designed to work with both Yacc and Bison, and is used by many programs as part of their build process. You should install flex if you are going to use your system for application development.
We can use yum
or dnf
to install flex
on Rocky Linux 8. In this tutorial we discuss both methods but you only need to choose one of method to install flex.
Install flex on Rocky Linux 8 Using dnf
Update yum database with dnf
using the following command.
sudo dnf makecache --refresh
After updating yum database, We can install flex
using dnf
by running the following command:
sudo dnf -y install flex
Install flex on Rocky Linux 8 Using yum
Update yum database with yum
using the following command.
sudo yum makecache --refresh
After updating yum database, We can install flex
using yum
by running the following command:
sudo yum -y install flex
How To Uninstall flex on Rocky Linux 8
To uninstall only the flex
package we can use the following command:
sudo dnf remove flex
flex Package Contents on Rocky Linux 8
/usr/bin/flex
/usr/bin/flex++
/usr/bin/lex
/usr/include/FlexLexer.h
/usr/lib/.build-id
/usr/lib/.build-id/84
/usr/lib/.build-id/84/8e98037d3a969abaede9de0a4f2ea439193bdc
/usr/share/doc/flex
/usr/share/doc/flex/NEWS
/usr/share/doc/flex/README
/usr/share/info/flex.info-1.gz
/usr/share/info/flex.info-2.gz
/usr/share/info/flex.info.gz
/usr/share/licenses/flex
/usr/share/licenses/flex/COPYING
/usr/share/locale/ca/LC_MESSAGES/flex.mo
/usr/share/locale/da/LC_MESSAGES/flex.mo
/usr/share/locale/de/LC_MESSAGES/flex.mo
/usr/share/locale/en@boldquot/LC_MESSAGES/flex.mo
/usr/share/locale/en@quot/LC_MESSAGES/flex.mo
/usr/share/locale/eo/LC_MESSAGES/flex.mo
/usr/share/locale/es/LC_MESSAGES/flex.mo
/usr/share/locale/fi/LC_MESSAGES/flex.mo
/usr/share/locale/fr/LC_MESSAGES/flex.mo
/usr/share/locale/ga/LC_MESSAGES/flex.mo
/usr/share/locale/hr/LC_MESSAGES/flex.mo
/usr/share/locale/ko/LC_MESSAGES/flex.mo
/usr/share/locale/nl/LC_MESSAGES/flex.mo
/usr/share/locale/pl/LC_MESSAGES/flex.mo
/usr/share/locale/pt_BR/LC_MESSAGES/flex.mo
/usr/share/locale/ro/LC_MESSAGES/flex.mo
/usr/share/locale/ru/LC_MESSAGES/flex.mo
/usr/share/locale/sr/LC_MESSAGES/flex.mo
/usr/share/locale/sv/LC_MESSAGES/flex.mo
/usr/share/locale/tr/LC_MESSAGES/flex.mo
/usr/share/locale/vi/LC_MESSAGES/flex.mo
/usr/share/locale/zh_CN/LC_MESSAGES/flex.mo
/usr/share/locale/zh_TW/LC_MESSAGES/flex.mo
/usr/share/man/man1/flex++.1.gz
/usr/share/man/man1/flex.1.gz
/usr/share/man/man1/lex.1.gz
References
Summary
In this tutorial we learn how to install flex
on Rocky Linux 8 using yum and dnf.