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<a name="Screen-Size-1"></a>
<h3 class="section">22.4 Screen Size</h3>
<a name="index-size-of-screen"></a>
<a name="index-screen-size"></a>
<a name="index-pagination"></a>
<a name="index-page-size"></a>
<a name="index-pauses-in-output"></a>

<p>Certain commands to <small>GDB</small> may produce large amounts of
information output to the screen.  To help you read all of it,
<small>GDB</small> pauses and asks you for input at the end of each page of
output.  Type <tt class="key">RET</tt> when you want to see one more page of output,
<kbd>q</kbd> to discard the remaining output, or <kbd>c</kbd> to continue
without paging for the rest of the current command.  Also, the screen
width setting determines when to wrap lines of output.  Depending on
what is being printed, <small>GDB</small> tries to break the line at a
readable place, rather than simply letting it overflow onto the
following line.
</p>
<p>Normally <small>GDB</small> knows the size of the screen from the terminal
driver software.  For example, on Unix <small>GDB</small> uses the termcap data base
together with the value of the <code>TERM</code> environment variable and the
<code>stty rows</code> and <code>stty cols</code> settings.  If this is not correct,
you can override it with the <code>set height</code> and <code>set
width</code> commands:
</p>
<dl compact="compact">
<dd><a name="index-set-height"></a>
<a name="index-set-width"></a>
<a name="index-show-width"></a>
<a name="index-show-height"></a>
</dd>
<dt><code>set height <var>lpp</var></code></dt>
<dt><code>set height unlimited</code></dt>
<dt><code>show height</code></dt>
<dt><code>set width <var>cpl</var></code></dt>
<dt><code>set width unlimited</code></dt>
<dt><code>show width</code></dt>
<dd><p>These <code>set</code> commands specify a screen height of <var>lpp</var> lines and
a screen width of <var>cpl</var> characters.  The associated <code>show</code>
commands display the current settings.
</p>
<p>If you specify a height of either <code>unlimited</code> or zero lines,
<small>GDB</small> does not pause during output no matter how long the
output is.  This is useful if output is to a file or to an editor
buffer.
</p>
<p>Likewise, you can specify &lsquo;<samp>set width unlimited</samp>&rsquo; or &lsquo;<samp>set
width 0</samp>&rsquo; to prevent <small>GDB</small> from wrapping its output.
</p>
</dd>
<dt><code>set pagination on</code></dt>
<dt><code>set pagination off</code></dt>
<dd><a name="index-set-pagination"></a>
<p>Turn the output pagination on or off; the default is on.  Turning
pagination off is the alternative to <code>set height unlimited</code>.  Note that
running <small>GDB</small> with the <samp>--batch</samp> option (see <a href="Mode-Options.html#Mode-Options">-batch</a>) also automatically disables pagination.
</p>
</dd>
<dt><code>show pagination</code></dt>
<dd><a name="index-show-pagination"></a>
<p>Show the current pagination mode.
</p></dd>
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