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<h3 class="section">22.4 Screen Size</h3>

<p><a name="index-size-of-screen-1454"></a><a name="index-pauses-in-output-1455"></a>
Certain commands to <span class="sc">gdb</span> may produce large amounts of
information output to the screen.  To help you read all of it,
<span class="sc">gdb</span> pauses and asks you for input at the end of each page of
output.  Type &lt;RET&gt; when you want to continue the output, or <kbd>q</kbd>
to discard the remaining output.  Also, the screen width setting
determines when to wrap lines of output.  Depending on what is being
printed, <span class="sc">gdb</span> tries to break the line at a readable place,
rather than simply letting it overflow onto the following line.

   <p>Normally <span class="sc">gdb</span> knows the size of the screen from the terminal
driver software.  For example, on Unix <span class="sc">gdb</span> 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:

     
<a name="index-set-height-1456"></a>
<a name="index-set-width-1457"></a>
<a name="index-show-width-1458"></a>
<a name="index-show-height-1459"></a>
<dl><dt><code>set height </code><var>lpp</var><dt><code>show height</code><dt><code>set width </code><var>cpl</var><dt><code>show width</code><dd>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>If you specify a height of zero lines, <span class="sc">gdb</span> 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>Likewise, you can specify &lsquo;<samp><span class="samp">set width 0</span></samp>&rsquo; to prevent <span class="sc">gdb</span>
from wrapping its output.

     <br><dt><code>set pagination on</code><dt><code>set pagination off</code><dd><a name="index-set-pagination-1460"></a>Turn the output pagination on or off; the default is on.  Turning
pagination off is the alternative to <code>set height 0</code>.  Note that
running <span class="sc">gdb</span> with the <samp><span class="option">--batch</span></samp> option (see <a href="Mode-Options.html#Mode-Options">-batch</a>) also automatically disables pagination.

     <br><dt><code>show pagination</code><dd><a name="index-show-pagination-1461"></a>Show the current pagination mode. 
</dl>

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