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<a name="Saving-Data-on-Unexpected-Exits"></a>
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Up: <a href="Simple-File-I_002fO.html#Simple-File-I_002fO" accesskey="u" rel="up">Simple File I/O</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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<a name="Saving-Data-on-Unexpected-Exits-1"></a>
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<h4 class="subsubsection">14.1.3.1 Saving Data on Unexpected Exits</h4>
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<p>If Octave for some reason exits unexpectedly it will by default save the
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variables available in the workspace to a file in the current directory.
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By default this file is named ‘<samp>octave-workspace</samp>’ and can be loaded
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into memory with the <code>load</code> command. While the default behavior
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most often is reasonable it can be changed through the following
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<a name="XREFcrash_005fdumps_005foctave_005fcore"></a><dl>
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<dt><a name="index-crash_005fdumps_005foctave_005fcore"></a>Built-in Function: <em><var>val</var> =</em> <strong>crash_dumps_octave_core</strong> <em>()</em></dt>
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<dt><a name="index-crash_005fdumps_005foctave_005fcore-1"></a>Built-in Function: <em><var>old_val</var> =</em> <strong>crash_dumps_octave_core</strong> <em>(<var>new_val</var>)</em></dt>
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<dt><a name="index-crash_005fdumps_005foctave_005fcore-2"></a>Built-in Function: <em></em> <strong>crash_dumps_octave_core</strong> <em>(<var>new_val</var>, "local")</em></dt>
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<dd><p>Query or set the internal variable that controls whether Octave tries
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to save all current variables to the file <samp>octave-workspace</samp> if it
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crashes or receives a hangup, terminate or similar signal.
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<p>When called from inside a function with the <code>"local"</code> option, the
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variable is changed locally for the function and any subroutines it calls.
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The original variable value is restored when exiting the function.
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<p><strong>See also:</strong> <a href="#XREFoctave_005fcore_005ffile_005flimit">octave_core_file_limit</a>, <a href="#XREFoctave_005fcore_005ffile_005fname">octave_core_file_name</a>, <a href="#XREFoctave_005fcore_005ffile_005foptions">octave_core_file_options</a>.
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<a name="XREFsighup_005fdumps_005foctave_005fcore"></a><dl>
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<dt><a name="index-sighup_005fdumps_005foctave_005fcore"></a>Built-in Function: <em><var>val</var> =</em> <strong>sighup_dumps_octave_core</strong> <em>()</em></dt>
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<dt><a name="index-sighup_005fdumps_005foctave_005fcore-1"></a>Built-in Function: <em><var>old_val</var> =</em> <strong>sighup_dumps_octave_core</strong> <em>(<var>new_val</var>)</em></dt>
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<dt><a name="index-sighup_005fdumps_005foctave_005fcore-2"></a>Built-in Function: <em></em> <strong>sighup_dumps_octave_core</strong> <em>(<var>new_val</var>, "local")</em></dt>
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<dd><p>Query or set the internal variable that controls whether Octave tries
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to save all current variables to the file <samp>octave-workspace</samp> if it
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receives a hangup signal.
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<p>When called from inside a function with the <code>"local"</code> option, the
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variable is changed locally for the function and any subroutines it calls.
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The original variable value is restored when exiting the function.
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<a name="XREFsigterm_005fdumps_005foctave_005fcore"></a><dl>
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<dt><a name="index-sigterm_005fdumps_005foctave_005fcore"></a>Built-in Function: <em><var>val</var> =</em> <strong>sigterm_dumps_octave_core</strong> <em>()</em></dt>
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<dt><a name="index-sigterm_005fdumps_005foctave_005fcore-1"></a>Built-in Function: <em><var>old_val</var> =</em> <strong>sigterm_dumps_octave_core</strong> <em>(<var>new_val</var>)</em></dt>
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<dt><a name="index-sigterm_005fdumps_005foctave_005fcore-2"></a>Built-in Function: <em></em> <strong>sigterm_dumps_octave_core</strong> <em>(<var>new_val</var>, "local")</em></dt>
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<dd><p>Query or set the internal variable that controls whether Octave tries
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to save all current variables to the file <samp>octave-workspace</samp> if it
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receives a terminate signal.
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<p>When called from inside a function with the <code>"local"</code> option, the
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variable is changed locally for the function and any subroutines it calls.
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The original variable value is restored when exiting the function.
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<a name="XREFoctave_005fcore_005ffile_005foptions"></a><dl>
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<dt><a name="index-octave_005fcore_005ffile_005foptions"></a>Built-in Function: <em><var>val</var> =</em> <strong>octave_core_file_options</strong> <em>()</em></dt>
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<dt><a name="index-octave_005fcore_005ffile_005foptions-1"></a>Built-in Function: <em><var>old_val</var> =</em> <strong>octave_core_file_options</strong> <em>(<var>new_val</var>)</em></dt>
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<dt><a name="index-octave_005fcore_005ffile_005foptions-2"></a>Built-in Function: <em></em> <strong>octave_core_file_options</strong> <em>(<var>new_val</var>, "local")</em></dt>
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<dd><p>Query or set the internal variable that specifies the options used for
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saving the workspace data if Octave aborts. The value of
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<code>octave_core_file_options</code> should follow the same format as the
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options for the <code>save</code> function. The default value is Octave’s binary
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<p>When called from inside a function with the <code>"local"</code> option, the
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variable is changed locally for the function and any subroutines it calls.
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The original variable value is restored when exiting the function.
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<p><strong>See also:</strong> <a href="#XREFcrash_005fdumps_005foctave_005fcore">crash_dumps_octave_core</a>, <a href="#XREFoctave_005fcore_005ffile_005fname">octave_core_file_name</a>, <a href="#XREFoctave_005fcore_005ffile_005flimit">octave_core_file_limit</a>.
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<a name="XREFoctave_005fcore_005ffile_005flimit"></a><dl>
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<dt><a name="index-octave_005fcore_005ffile_005flimit"></a>Built-in Function: <em><var>val</var> =</em> <strong>octave_core_file_limit</strong> <em>()</em></dt>
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<dt><a name="index-octave_005fcore_005ffile_005flimit-1"></a>Built-in Function: <em><var>old_val</var> =</em> <strong>octave_core_file_limit</strong> <em>(<var>new_val</var>)</em></dt>
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<dt><a name="index-octave_005fcore_005ffile_005flimit-2"></a>Built-in Function: <em></em> <strong>octave_core_file_limit</strong> <em>(<var>new_val</var>, "local")</em></dt>
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<dd><p>Query or set the internal variable that specifies the maximum amount
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of memory (in kilobytes) of the top-level workspace that Octave will
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attempt to save when writing data to the crash dump file (the name of
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the file is specified by <var>octave_core_file_name</var>). If
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<var>octave_core_file_options</var> flags specify a binary format,
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then <var>octave_core_file_limit</var> will be approximately the maximum
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size of the file. If a text file format is used, then the file could
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be much larger than the limit. The default value is -1 (unlimited)
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<p>When called from inside a function with the <code>"local"</code> option, the
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variable is changed locally for the function and any subroutines it calls.
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The original variable value is restored when exiting the function.
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<p><strong>See also:</strong> <a href="#XREFcrash_005fdumps_005foctave_005fcore">crash_dumps_octave_core</a>, <a href="#XREFoctave_005fcore_005ffile_005fname">octave_core_file_name</a>, <a href="#XREFoctave_005fcore_005ffile_005foptions">octave_core_file_options</a>.
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<a name="XREFoctave_005fcore_005ffile_005fname"></a><dl>
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<dt><a name="index-octave_005fcore_005ffile_005fname"></a>Built-in Function: <em><var>val</var> =</em> <strong>octave_core_file_name</strong> <em>()</em></dt>
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<dt><a name="index-octave_005fcore_005ffile_005fname-1"></a>Built-in Function: <em><var>old_val</var> =</em> <strong>octave_core_file_name</strong> <em>(<var>new_val</var>)</em></dt>
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<dt><a name="index-octave_005fcore_005ffile_005fname-2"></a>Built-in Function: <em></em> <strong>octave_core_file_name</strong> <em>(<var>new_val</var>, "local")</em></dt>
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<dd><p>Query or set the internal variable that specifies the name of the file
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used for saving data from the top-level workspace if Octave aborts.
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The default value is <code>"octave-workspace"</code>
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<p>When called from inside a function with the <code>"local"</code> option, the
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variable is changed locally for the function and any subroutines it calls.
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The original variable value is restored when exiting the function.
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<p><strong>See also:</strong> <a href="#XREFcrash_005fdumps_005foctave_005fcore">crash_dumps_octave_core</a>, <a href="#XREFoctave_005fcore_005ffile_005fname">octave_core_file_name</a>, <a href="#XREFoctave_005fcore_005ffile_005foptions">octave_core_file_options</a>.
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Up: <a href="Simple-File-I_002fO.html#Simple-File-I_002fO" accesskey="u" rel="up">Simple File I/O</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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