README update.

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Johannes Findeisen 2025-06-27 01:30:22 +02:00
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chkusr is a set of programs to verify information about a user on a UNIX based systems.
* [The idea](#the-idea)
* [Requirements](#requirements)
* [Building chkusr](#building-chkusr)
* [Installation](#installation)
* [Uninstall](#uninstall)
* [chkgrp](#chkgrp)
* [chkpwd](#chkpwd)
* [Custom build](#custom-build)
* [Usage](#usage)
* [Return codes](#return-codes)
* [Examples](#examples)
* [Interactive mode asking for a username and a password](#interactive-mode-asking-for-a-username-and-a-password)
* [Interactive mode only asking for a password](#interactive-mode-only-asking-for-a-password)
* [None interactive mode with username and password provided as arguments to chkpwd](#none-interactive-mode-with-username-and-password-provided-as-arguments-to-chkpwd)
* [Request the result from the above commands](#request-the-result-from-the-above-commands)
* [Links](#links)
* [License](#license)
## The idea
I needed some programs to verify some information about users and groups on a Linux/UNIX system just returning 0 on success and 1 on error.