85 lines
4.1 KiB
HTML
85 lines
4.1 KiB
HTML
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<title>Readline Bare Essentials - Debugging with GDB</title>
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<a name="Readline-Bare-Essentials"></a>
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Next: <a rel="next" accesskey="n" href="Readline-Movement-Commands.html#Readline-Movement-Commands">Readline Movement Commands</a>,
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Up: <a rel="up" accesskey="u" href="Readline-Interaction.html#Readline-Interaction">Readline Interaction</a>
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<h4 class="subsection">32.2.1 Readline Bare Essentials</h4>
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<p><a name="index-notation_002c-readline-3181"></a><a name="index-command-editing-3182"></a><a name="index-editing-command-lines-3183"></a>
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In order to enter characters into the line, simply type them. The typed
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character appears where the cursor was, and then the cursor moves one
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space to the right. If you mistype a character, you can use your
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erase character to back up and delete the mistyped character.
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<p>Sometimes you may mistype a character, and
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not notice the error until you have typed several other characters. In
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that case, you can type <kbd>C-b</kbd> to move the cursor to the left, and then
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correct your mistake. Afterwards, you can move the cursor to the right
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with <kbd>C-f</kbd>.
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<p>When you add text in the middle of a line, you will notice that characters
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to the right of the cursor are `pushed over' to make room for the text
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that you have inserted. Likewise, when you delete text behind the cursor,
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characters to the right of the cursor are `pulled back' to fill in the
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blank space created by the removal of the text. A list of the bare
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essentials for editing the text of an input line follows.
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<dl>
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<dt><kbd>C-b</kbd><dd>Move back one character.
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<br><dt><kbd>C-f</kbd><dd>Move forward one character.
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<br><dt><DEL> or <Backspace><dd>Delete the character to the left of the cursor.
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<br><dt><kbd>C-d</kbd><dd>Delete the character underneath the cursor.
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<br><dt>Printing characters<!-- /@w --><dd>Insert the character into the line at the cursor.
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<br><dt><kbd>C-_</kbd> or <kbd>C-x C-u</kbd><dd>Undo the last editing command. You can undo all the way back to an
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empty line.
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</dl>
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<p class="noindent">(Depending on your configuration, the <Backspace> key be set to
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delete the character to the left of the cursor and the <DEL> key set
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to delete the character underneath the cursor, like <kbd>C-d</kbd>, rather
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than the character to the left of the cursor.)
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</body></html>
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