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140 lines
5.8 KiB
HTML
140 lines
5.8 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- Copyright (C) 1988-2019 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being "Free Software" and "Free Software Needs
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Free Documentation", with the Front-Cover Texts being "A GNU Manual,"
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and with the Back-Cover Texts as in (a) below.
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(a) The FSF's Back-Cover Text is: "You are free to copy and modify
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this GNU Manual. Buying copies from GNU Press supports the FSF in
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developing GNU and promoting software freedom." -->
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Prompt (Debugging with GDB)</title>
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<meta name="description" content="Prompt (Debugging with GDB)">
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<meta name="keywords" content="Prompt (Debugging with GDB)">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Controlling-GDB.html#Controlling-GDB" rel="up" title="Controlling GDB">
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<link href="Editing.html#Editing" rel="next" title="Editing">
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<link href="Controlling-GDB.html#Controlling-GDB" rel="prev" title="Controlling GDB">
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<style type="text/css">
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<!--
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a.summary-letter {text-decoration: none}
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blockquote.indentedblock {margin-right: 0em}
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blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
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div.display {margin-left: 3.2em}
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div.example {margin-left: 3.2em}
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div.lisp {margin-left: 3.2em}
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div.smalldisplay {margin-left: 3.2em}
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div.smalllisp {margin-left: 3.2em}
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kbd {font-style: oblique}
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pre.display {font-family: inherit}
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pre.format {font-family: inherit}
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pre.menu-comment {font-family: serif}
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pre.menu-preformatted {font-family: serif}
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pre.smalldisplay {font-family: inherit; font-size: smaller}
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pre.smallexample {font-size: smaller}
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pre.smallformat {font-family: inherit; font-size: smaller}
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pre.smalllisp {font-size: smaller}
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span.nolinebreak {white-space: nowrap}
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span.roman {font-family: initial; font-weight: normal}
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span.sansserif {font-family: sans-serif; font-weight: normal}
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ul.no-bullet {list-style: none}
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-->
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</style>
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</head>
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<body lang="en">
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<a name="Prompt"></a>
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<div class="header">
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<p>
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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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</div>
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<hr>
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<a name="Prompt-1"></a>
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<h3 class="section">22.1 Prompt</h3>
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<a name="index-prompt"></a>
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<p><small>GDB</small> indicates its readiness to read a command by printing a string
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called the <em>prompt</em>. This string is normally ‘<samp>(gdb)</samp>’. You
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can change the prompt string with the <code>set prompt</code> command. For
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instance, when debugging <small>GDB</small> with <small>GDB</small>, it is useful to change
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the prompt in one of the <small>GDB</small> sessions so that you can always tell
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which one you are talking to.
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</p>
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<p><em>Note:</em> <code>set prompt</code> does not add a space for you after the
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prompt you set. This allows you to set a prompt which ends in a space
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or a prompt that does not.
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</p>
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<dl compact="compact">
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<dd><a name="index-set-prompt"></a>
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</dd>
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<dt><code>set prompt <var>newprompt</var></code></dt>
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<dd><p>Directs <small>GDB</small> to use <var>newprompt</var> as its prompt string henceforth.
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</p>
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<a name="index-show-prompt"></a>
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</dd>
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<dt><code>show prompt</code></dt>
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<dd><p>Prints a line of the form: ‘<samp>Gdb's prompt is: <var>your-prompt</var></samp>’
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</p></dd>
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</dl>
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<p>Versions of <small>GDB</small> that ship with Python scripting enabled have
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prompt extensions. The commands for interacting with these extensions
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are:
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</p>
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<dl compact="compact">
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<dd><a name="index-set-extended_002dprompt"></a>
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</dd>
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<dt><code>set extended-prompt <var>prompt</var></code></dt>
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<dd><p>Set an extended prompt that allows for substitutions.
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See <a href="gdb_002eprompt.html#gdb_002eprompt">gdb.prompt</a>, for a list of escape sequences that can be used for
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substitution. Any escape sequences specified as part of the prompt
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string are replaced with the corresponding strings each time the prompt
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is displayed.
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</p>
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<p>For example:
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</p>
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<div class="smallexample">
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<pre class="smallexample">set extended-prompt Current working directory: \w (gdb)
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</pre></div>
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<p>Note that when an extended-prompt is set, it takes control of the
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<var>prompt_hook</var> hook. See <a href="Basic-Python.html#prompt_005fhook">prompt_hook</a>, for further information.
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</p>
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<a name="index-show-extended_002dprompt"></a>
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</dd>
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<dt><code>show extended-prompt</code></dt>
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<dd><p>Prints the extended prompt. Any escape sequences specified as part of
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the prompt string with <code>set extended-prompt</code>, are replaced with the
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corresponding strings each time the prompt is displayed.
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</p></dd>
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</dl>
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<hr>
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<div class="header">
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<p>
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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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</div>
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</body>
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</html>
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