user703: Is there an easy guide how to install stockfish on ubuntu?
From the main site I can not find any information and github repository does not provide many details.
I would really appreciate if someone who already installed and started to run it would share the steps.

user1967: The package is referenced at http://packages.debian.org/sid/i386/stockfish/download which can be installed with aptitude or synaptic. 
Try this Link for more info

user7555: I suggest you simply use this command in your Terminal: 

sudo apt-get install stockfish


user825: Don't use apt-get because it doesn't give the latest Stockfish version. Do this:
wget https://stockfishchess.org/files/stockfish-10-linux.zip
unzip stockfish-10-linux.zip
chmod +x stockfish-10-linux/Linux/stockfish_10_x64
./stockfish-10-linux/Linux/stockfish_10_x64


user10453: I would recommend that you download the engine from https://stockfishchess.org/.
Unzip the zip file and go into the src folder.
unzip stockfish-7-linux.zip
cd stockfish-7-linux/src

Call the make script i.e.
make build ARCH=x86-64


user2013: As probably you already know Stockfish is "only" a chess engine. It means it's "only" the part of the program that makes the thinking, and it has no interface at all.
I haven't used Ubuntu for a while, but AFAIK Stockfish is available on its repositories, so you should be able to install it just by:
$ sudo apt-get install stockfish
If for whatever reason you need/want to install Stockfish from the sources, once you've downloaded the code from the github repo, you just need a C++ compiler (v.g. g++) and from the "src" folder enter the command:
$ make build ARCH=x86-64    (This is for 64-bit systems)
$ make build ARCH=x86-32    (This is for 32-bit systems)
In order to be able to play against Stockfis you need a chess GUI, for example Arena (only windows version, so you need wine in order to make it work) and ScidVsPC are vey popular:
http://scidvspc.sourceforge.net/
http://www.playwitharena.com/
Once you've installed a GUI and the Stockfish engine, you just have to add the Stockfish engine to the GUI in order to be able to play against it.

user7507: Just for completeness, I would like to add more explicit instructions for using stockfish in Scid, because sometimes it is a little confusing how to get stockfish to function in an actual chess program.
sudo apt-get install scid
sudo apt-get install stockfish

Load Scid
In Scid Click:
Tools -> Analysis Engine (click twice) -> New
    Set Name to ‘stockfish’
    Command is /usr/games/stockfish (use ‘which stockfish’ if not)
    Directory : Click the ~/.scid button
    Hit OK and select the stockfish engine

Hopefully this is straightforward enough that anybody could replicate it.

703: <p>Is there an easy guide how to install <a href="http://stockfishchess.org/">stockfish</a> on ubuntu?</p>

<p>From the main site I can not find any information and <a href="https://github.com/mcostalba/Stockfish">github repository</a> does not provide many details.</p>

<p>I would really appreciate if someone who already installed and started to run it would share the steps.</p>
 1967: <p>The package is referenced at <a href="http://packages.debian.org/sid/i386/stockfish/download" rel="nofollow">http://packages.debian.org/sid/i386/stockfish/download</a> which can be installed with aptitude or synaptic. </p>

<p>Try this <a href="http://ubuntuforums.org/showthread.php?t=1531296" rel="nofollow">Link</a> for more info</p>
 7555: <p>I suggest you simply use this command in your Terminal: </p>

<blockquote>
  <p>sudo apt-get install stockfish</p>
</blockquote>
 825: <p>Don't use apt-get because it doesn't give the latest Stockfish version. Do this:</p>

<pre><code>wget https://stockfishchess.org/files/stockfish-10-linux.zip
unzip stockfish-10-linux.zip
chmod +x stockfish-10-linux/Linux/stockfish_10_x64
./stockfish-10-linux/Linux/stockfish_10_x64
</code></pre>
 10453: <p>I would recommend that you download the engine from <a href="https://stockfishchess.org/" rel="noreferrer">https://stockfishchess.org/</a>.</p>

<p>Unzip the zip file and go into the src folder.</p>

<pre><code>unzip stockfish-7-linux.zip
cd stockfish-7-linux/src
</code></pre>

<p>Call the make script i.e.</p>

<pre><code>make build ARCH=x86-64
</code></pre>
 2013: <p>As probably you already know Stockfish is "only" a chess engine. It means it's "only" the part of the program that makes the thinking, and it has no interface at all.</p>

<p>I haven't used Ubuntu for a while, but AFAIK Stockfish is available on its repositories, so you should be able to install it just by:
$ sudo apt-get install stockfish</p>

<p>If for whatever reason you need/want to install Stockfish from the sources, once you've downloaded the code from the github repo, you just need a C++ compiler (v.g. g++) and from the "src" folder enter the command:
$ make build ARCH=x86-64    (This is for 64-bit systems)
$ make build ARCH=x86-32    (This is for 32-bit systems)</p>

<p>In order to be able to play against Stockfis you need a chess GUI, for example Arena (only windows version, so you need wine in order to make it work) and ScidVsPC are vey popular:
<a href="http://scidvspc.sourceforge.net/" rel="noreferrer">http://scidvspc.sourceforge.net/</a>
<a href="http://www.playwitharena.com/" rel="noreferrer">http://www.playwitharena.com/</a></p>

<p>Once you've installed a GUI and the Stockfish engine, you just have to add the Stockfish engine to the GUI in order to be able to play against it.</p>
 7507: <p>Just for completeness, I would like to add more explicit instructions for using stockfish in Scid, because sometimes it is a little confusing how to get stockfish to function in an actual chess program.</p>

<pre><code>sudo apt-get install scid
sudo apt-get install stockfish
</code></pre>

<p>Load Scid
In Scid Click:</p>

<pre><code>Tools -&gt; Analysis Engine (click twice) -&gt; New
    Set Name to ‘stockfish’
    Command is /usr/games/stockfish (use ‘which stockfish’ if not)
    Directory : Click the ~/.scid button
    Hit OK and select the stockfish engine
</code></pre>

<p>Hopefully this is straightforward enough that anybody could replicate it.</p>
