How To Install ghc-cmdtheline on CentOS 7

In this tutorial we learn how to install ghc-cmdtheline on CentOS 7. ghc-cmdtheline is Declarative command-line option parsing and documentation library

Introduction

In this tutorial we learn how to install ghc-cmdtheline on CentOS 7.

What is ghc-cmdtheline

CmdTheLine aims to remove tedium from the definition of command-line programs, producing usage and help with little effort. The inspiration was found in Daniel Bunzli’s <http CmdTheLine uses applicative functors to provide a declarative, compositional mechanism for defining command-line programs by lifting regular Haskell functions over argument parsers. A tutorial can be found at <http Suggestions, comments, and bug reports are appreciated. Please see the bug and issue tracker at <http

We can use yum or dnf to install ghc-cmdtheline on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install ghc-cmdtheline.

Install ghc-cmdtheline on CentOS 7 Using yum

Update yum database with yum using the following command.

sudo yum makecache

After updating yum database, We can install ghc-cmdtheline using yum by running the following command:

sudo yum -y install ghc-cmdtheline

Install ghc-cmdtheline on CentOS 7 Using dnf

If you don’t have dnf installed you can install DNF on CentOS 7 first. Update yum database with dnf using the following command.

sudo dnf makecache

After updating yum database, We can install ghc-cmdtheline using dnf by running the following command:

sudo dnf -y install ghc-cmdtheline

How To Uninstall ghc-cmdtheline on CentOS 7

To uninstall only the ghc-cmdtheline package we can use the following command:

sudo dnf remove ghc-cmdtheline

References

Summary

In this tutorial we learn how to install ghc-cmdtheline on CentOS 7 using yum and dnf.