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<div class="pagelocation"><a href="http://help.ubuntu-it.org/">Documentazione di Ubuntu</a> > <a href="http://help.ubuntu-it.org/11.04/ubuntu/index.html">Ubuntu 11.04</a> > <span class="breadcrumb-link"><a href="index.html">Guida a Ubuntu Server</a></span> > <span class="breadcrumb-link"><a href="other-useful-applications.html">Altre utili applicazioni</a></span> > <span class="breadcrumb-node">Byobu</span></div>
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<h2 class="title" style="clear: both"><a id="byobu"></a>Byobu</h2>
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<p>
One of the most useful applications for any system administrator is <span class="application"><strong>screen</strong></span>. It allows the execution
of multiple shells in one terminal. To make some of the advanced <span class="application"><strong>screen</strong></span> features more
user friendly, and provide some useful information about the system, the <span class="application"><strong>byobu</strong></span> package was
created.
</p>
<p>
When executing <span class="application"><strong>byobu</strong></span> pressing the <span class="emphasis"><em>F9</em></span> key will bring up the
<span class="application"><strong>Configuration</strong></span> menu. This menu will allow you to:
</p>
<div class="itemizedlist">
<ul class="itemizedlist" type="disc">
<li class="listitem">
<p>Visualizzare il menù dell'aiuto</p>
</li>
<li class="listitem">
<p>Change Byobu's background color</p>
</li>
<li class="listitem">
<p>Change Byobu's foreground color</p>
</li>
<li class="listitem">
<p>Toggle status notifications</p>
</li>
<li class="listitem">
<p>Modificare le associazioni dei tasti</p>
</li>
<li class="listitem">
<p>Modificare la sequenza di escape</p>
</li>
<li class="listitem">
<p>Create new windows</p>
</li>
<li class="listitem">
<p>Gestire le finestre predefinite</p>
</li>
<li class="listitem">
<p>Byobu currently does not launch at login (toggle on)</p>
</li>
</ul>
</div>
<p>
The <span class="emphasis"><em>key bindings</em></span> determine such things as the escape sequence, new window, change window, etc. There
are two key binding sets to choose from <span class="emphasis"><em>f-keys</em></span> and <span class="emphasis"><em>screen-escape-keys</em></span>. If you wish to use the
original key bindings choose the <span class="emphasis"><em>none</em></span> set.
</p>
<p>
<span class="application"><strong>byobu</strong></span> provides a menu which displays the Ubuntu release, processor information,
memory information, and the time and date. The effect is similar to a desktop menu.
</p>
<p>
Using the <span class="emphasis"><em>"Byobu currently does not launch at login (toggle on)"</em></span> option will cause <span class="application"><strong>byobu</strong></span>
to be executed any time a terminal is opened. Changes made to <span class="application"><strong>byobu</strong></span> are on a per user basis, and will not
affect other users on the system.
</p>
<p>
One difference when using byobu is the <span class="emphasis"><em>scrollback</em></span> mode. Press the
<span class="emphasis"><em>F7</em></span> key to enter scrollback mode. Scrollback mode allows you to navigate
past output using <span class="emphasis"><em>vi</em></span> like commands. Here is a quick list of movement commands:
</p>
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<p><span class="emphasis"><em>h</em></span>: sposta il cursore a sinistra di un carattere</p>
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<p><span class="emphasis"><em>j</em></span>: sposta il cursore in giù di una riga</p>
</li>
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<p><span class="emphasis"><em>k</em></span>: sposta il cursore in su di una riga</p>
</li>
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<p><span class="emphasis"><em>l</em></span>: sposta il cursore a destra di un carattere</p>
</li>
<li class="listitem">
<p><span class="emphasis"><em>0</em></span>: va all'inizio della riga attuale</p>
</li>
<li class="listitem">
<p><span class="emphasis"><em>$</em></span>: va alla fine della riga attuale</p>
</li>
<li class="listitem">
<p><span class="emphasis"><em>G</em></span>: va alla riga specificata (come valore predefinito va alla fine del buffer)</p>
</li>
<li class="listitem">
<p><span class="emphasis"><em>/</em></span>: cerca in avanti</p>
</li>
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<p><span class="emphasis"><em>?</em></span>: cerca all'indietro</p>
</li>
<li class="listitem">
<p><span class="emphasis"><em>n</em></span>: si sposta alla corrispondenza successiva, in avanti o all'indietro</p>
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