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| <title>Debugging with GDB: Prompt</title> |
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| Next: <a href="Editing.html#Editing" accesskey="n" rel="next">Editing</a>, Up: <a href="Controlling-GDB.html#Controlling-GDB" accesskey="u" rel="up">Controlling GDB</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="Prompt-1"></a> |
| <h3 class="section">22.1 Prompt</h3> |
| |
| <a name="index-prompt"></a> |
| |
| <p><small>GDB</small> indicates its readiness to read a command by printing a string |
| called the <em>prompt</em>. This string is normally ‘<samp>(gdb)</samp>’. You |
| can change the prompt string with the <code>set prompt</code> command. For |
| instance, when debugging <small>GDB</small> with <small>GDB</small>, it is useful to change |
| the prompt in one of the <small>GDB</small> sessions so that you can always tell |
| which one you are talking to. |
| </p> |
| <p><em>Note:</em> <code>set prompt</code> does not add a space for you after the |
| prompt you set. This allows you to set a prompt which ends in a space |
| or a prompt that does not. |
| </p> |
| <dl compact="compact"> |
| <dd><a name="index-set-prompt"></a> |
| </dd> |
| <dt><code>set prompt <var>newprompt</var></code></dt> |
| <dd><p>Directs <small>GDB</small> to use <var>newprompt</var> as its prompt string henceforth. |
| </p> |
| <a name="index-show-prompt"></a> |
| </dd> |
| <dt><code>show prompt</code></dt> |
| <dd><p>Prints a line of the form: ‘<samp>Gdb's prompt is: <var>your-prompt</var></samp>’ |
| </p></dd> |
| </dl> |
| |
| <p>Versions of <small>GDB</small> that ship with Python scripting enabled have |
| prompt extensions. The commands for interacting with these extensions |
| are: |
| </p> |
| <dl compact="compact"> |
| <dd><a name="index-set-extended_002dprompt"></a> |
| </dd> |
| <dt><code>set extended-prompt <var>prompt</var></code></dt> |
| <dd><p>Set an extended prompt that allows for substitutions. |
| See <a href="gdb_002eprompt.html#gdb_002eprompt">gdb.prompt</a>, for a list of escape sequences that can be used for |
| substitution. Any escape sequences specified as part of the prompt |
| string are replaced with the corresponding strings each time the prompt |
| is displayed. |
| </p> |
| <p>For example: |
| </p> |
| <div class="smallexample"> |
| <pre class="smallexample">set extended-prompt Current working directory: \w (gdb) |
| </pre></div> |
| |
| <p>Note that when an extended-prompt is set, it takes control of the |
| <var>prompt_hook</var> hook. See <a href="Basic-Python.html#prompt_005fhook">prompt_hook</a>, for further information. |
| </p> |
| <a name="index-show-extended_002dprompt"></a> |
| </dd> |
| <dt><code>show extended-prompt</code></dt> |
| <dd><p>Prints the extended prompt. Any escape sequences specified as part of |
| the prompt string with <code>set extended-prompt</code>, are replaced with the |
| corresponding strings each time the prompt is displayed. |
| </p></dd> |
| </dl> |
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