Flex Installation On A Debian, Ubuntu, Alpine, Arch, Kali, CentOS, Fedora, Raspbian And MacOS

Flex Installation On A Debian, Ubuntu, Alpine, Arch, Kali, CentOS, Fedora, Raspbian And MacOS

flex

Lexical analyser generator. Based on `lex`.
Given the specification for a lexical analyser, generates C code implementing it.

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Maintainer: Manoj Srivastava
Email: [email protected] .
Website: https://github.com/westes/flex
Section: devel

Install flex

  • Debian apt-get install flex Click to copy
  • Ubuntu apt-get install flex Click to copy
  • Alpine OS apk add flex Click to copy
  • Arch Linux pacman -S flex Click to copy
  • Kali Linux apt-get install flex Click to copy
  • CentOS yum install flex Click to copy
  • Fedora dnf install flex Click to copy
  • Raspbian apt-get install flex Click to copy
  • macOS brew install flex Click to copy

Lexical analyser generator. Based on `lex`. Given the specification for a lexical analyser, generates C code implementing it.

How to use flex?

Below are few example commands for flex that you can use in the terminal.

Generate an analyser from a flex file:
flex analyser.lClick to copySpecify the output file:
flex analyser.l --outfile analyser.cClick to copyCompile a C file generated by flex:
cc path/to/lex.yy.c --output executableClick to copy
Installing flex command is simple. just copy one of the above commands for your operating system and paste it into terminal. This command is available for Debian, Ubuntu, Alpine, Arch, Kali, CentOS, Fedora, Raspbian and macOS operating systems. Once you run the command it will install the latest version of flex 2026 package in your OS.