mingw/info/gdb/Event-Designators.html

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  12 Node:<a name="Event%20Designators">Event Designators</a>,
  13 Next:<a rel="next" accesskey="n" href="Word-Designators.html#Word%20Designators">Word Designators</a>,
  14 Up:<a rel="up" accesskey="u" href="History-Interaction.html#History%20Interaction">History Interaction</a>
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  17
  18 <h4 class="subsection">Event Designators</h4>
  19
  20    <p>An event designator is a reference to a command line entry in the
  21 history list.
  22
  23      <dl>
  24
  25      <br><dt><code>!</code>
  26      <dd>Start a history substitution, except when followed by a space, tab,
  27 the end of the line, <code>=</code> or <code>(</code>.
  28
  29      <br><dt><code>!</code><var>n</var><code></code>
  30      <dd>Refer to command line <var>n</var>.
  31
  32      <br><dt><code>!-</code><var>n</var><code></code>
  33      <dd>Refer to the command <var>n</var> lines back.
  34
  35      <br><dt><code>!!</code>
  36      <dd>Refer to the previous command.  This is a synonym for <code>!-1</code>.
  37
  38      <br><dt><code>!</code><var>string</var><code></code>
  39      <dd>Refer to the most recent command starting with <var>string</var>.
  40
  41      <br><dt><code>!?</code><var>string</var><code>[?]</code>
  42      <dd>Refer to the most recent command containing <var>string</var>.  The trailing
  43 <code>?</code> may be omitted if the <var>string</var> is followed immediately by
  44 a newline.
  45
  46      <br><dt><code>^</code><var>string1</var><code>^</code><var>string2</var><code>^</code>
  47      <dd>Quick Substitution.  Repeat the last command, replacing <var>string1</var>
  48 with <var>string2</var>.  Equivalent to
  49 <code>!!:s/</code><var>string1</var><code>/</code><var>string2</var><code>/</code>.
  50
  51      <br><dt><code>!#</code>
  52      <dd>The entire command line typed so far.
  53
  54    </dl>
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