---
layout: page
category-page: intermediate
category-title: Intermediate commands
tags: integrity checksum
author: Joey Bevilacqua
title: md5
---

The command <code>md5</code> calculates an unique string for each input given as
argument using the <i>md5</i> algorithm.

<pre>
md5 [flags] [arg1] [arg2]
</pre>

Where [flags] are the (optional) md5 flags, read below for more info,
and [arg1], [arg2] are the path for files or string (depending on the flags).

Example: md5 sum of the string <i>Hello there</i>

<pre>
md5 -s "Hello there"
    MD5 ("Hello there") = e8ea7a8d1e93e8764a84a0f3df4644de
</pre>

<h3>Flags</h3>

<ul>
    <li><b>-s</b>: computes the md5 sum of a string instead of a file</li>
    <li><b>-q</b>: prints the md5 sum without the file or string name</li>
    <li><b>-r</b>: reverses the format of the output</li>
</ul>