| <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html> |
| <!-- Copyright (C) 1988-2015 Free Software Foundation, Inc. |
| |
| Permission is granted to copy, distribute and/or modify this document |
| under the terms of the GNU Free Documentation License, Version 1.3 or |
| any later version published by the Free Software Foundation; with the |
| Invariant Sections being "Free Software" and "Free Software Needs |
| Free Documentation", with the Front-Cover Texts being "A GNU Manual," |
| and with the Back-Cover Texts as in (a) below. |
| |
| (a) The FSF's Back-Cover Text is: "You are free to copy and modify |
| this GNU Manual. Buying copies from GNU Press supports the FSF in |
| developing GNU and promoting software freedom." --> |
| <!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ --> |
| <head> |
| <title>Debugging with GDB: Event Designators</title> |
| |
| <meta name="description" content="Debugging with GDB: Event Designators"> |
| <meta name="keywords" content="Debugging with GDB: Event Designators"> |
| <meta name="resource-type" content="document"> |
| <meta name="distribution" content="global"> |
| <meta name="Generator" content="makeinfo"> |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> |
| <link href="index.html#Top" rel="start" title="Top"> |
| <link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index"> |
| <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> |
| <link href="History-Interaction.html#History-Interaction" rel="up" title="History Interaction"> |
| <link href="Word-Designators.html#Word-Designators" rel="next" title="Word Designators"> |
| <link href="History-Interaction.html#History-Interaction" rel="prev" title="History Interaction"> |
| <style type="text/css"> |
| <!-- |
| a.summary-letter {text-decoration: none} |
| blockquote.smallquotation {font-size: smaller} |
| div.display {margin-left: 3.2em} |
| div.example {margin-left: 3.2em} |
| div.indentedblock {margin-left: 3.2em} |
| div.lisp {margin-left: 3.2em} |
| div.smalldisplay {margin-left: 3.2em} |
| div.smallexample {margin-left: 3.2em} |
| div.smallindentedblock {margin-left: 3.2em; font-size: smaller} |
| div.smalllisp {margin-left: 3.2em} |
| kbd {font-style:oblique} |
| pre.display {font-family: inherit} |
| pre.format {font-family: inherit} |
| pre.menu-comment {font-family: serif} |
| pre.menu-preformatted {font-family: serif} |
| pre.smalldisplay {font-family: inherit; font-size: smaller} |
| pre.smallexample {font-size: smaller} |
| pre.smallformat {font-family: inherit; font-size: smaller} |
| pre.smalllisp {font-size: smaller} |
| span.nocodebreak {white-space:nowrap} |
| span.nolinebreak {white-space:nowrap} |
| span.roman {font-family:serif; font-weight:normal} |
| span.sansserif {font-family:sans-serif; font-weight:normal} |
| ul.no-bullet {list-style: none} |
| --> |
| </style> |
| |
| |
| </head> |
| |
| <body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> |
| <a name="Event-Designators"></a> |
| <div class="header"> |
| <p> |
| Next: <a href="Word-Designators.html#Word-Designators" accesskey="n" rel="next">Word Designators</a>, Up: <a href="History-Interaction.html#History-Interaction" accesskey="u" rel="up">History Interaction</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> |
| </div> |
| <hr> |
| <a name="Event-Designators-1"></a> |
| <h4 class="subsection">33.1.1 Event Designators</h4> |
| <a name="index-event-designators"></a> |
| |
| <p>An event designator is a reference to a command line entry in the |
| history list. |
| Unless the reference is absolute, events are relative to the current |
| position in the history list. |
| <a name="index-history-events"></a> |
| </p> |
| <dl compact="compact"> |
| <dt><code>!</code></dt> |
| <dd><p>Start a history substitution, except when followed by a space, tab, |
| the end of the line, or ‘<samp>=</samp>’. |
| </p> |
| </dd> |
| <dt><code>!<var>n</var></code></dt> |
| <dd><p>Refer to command line <var>n</var>. |
| </p> |
| </dd> |
| <dt><code>!-<var>n</var></code></dt> |
| <dd><p>Refer to the command <var>n</var> lines back. |
| </p> |
| </dd> |
| <dt><code>!!</code></dt> |
| <dd><p>Refer to the previous command. This is a synonym for ‘<samp>!-1</samp>’. |
| </p> |
| </dd> |
| <dt><code>!<var>string</var></code></dt> |
| <dd><p>Refer to the most recent command |
| preceding the current position in the history list |
| starting with <var>string</var>. |
| </p> |
| </dd> |
| <dt><code>!?<var>string</var>[?]</code></dt> |
| <dd><p>Refer to the most recent command |
| preceding the current position in the history list |
| containing <var>string</var>. |
| The trailing |
| ‘<samp>?</samp>’ may be omitted if the <var>string</var> is followed immediately by |
| a newline. |
| </p> |
| </dd> |
| <dt><code>^<var>string1</var>^<var>string2</var>^</code></dt> |
| <dd><p>Quick Substitution. Repeat the last command, replacing <var>string1</var> |
| with <var>string2</var>. Equivalent to |
| <code>!!:s/<var>string1</var>/<var>string2</var>/</code>. |
| </p> |
| </dd> |
| <dt><code>!#</code></dt> |
| <dd><p>The entire command line typed so far. |
| </p> |
| </dd> |
| </dl> |
| |
| |
| |
| |
| </body> |
| </html> |