ed.html

IEEE 1003.1-2003, Single Unix Specification v3

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<p class="tent">&nbsp;</p>
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<p class="tent">,</p>
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<p class="tent">1</p>
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<p class="tent">$</p>
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<p class="tent">Historical</p>
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<p class="tent">&nbsp;</p>
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<p class="tent">,7</p>
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<p class="tent">1</p>
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<p class="tent">7</p>
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<p class="tent">,,</p>
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<p class="tent">$</p>
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<p class="tent">&nbsp;</p>
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<p class="tent">,;</p>
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<p class="tent">$</p>
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<p class="tent">&nbsp;</p>
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<p class="tent">7;</p>
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<p class="tent">7</p>
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<p class="tent">Historical</p>
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<p class="tent">&nbsp;</p>
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<p class="tent">7;5;</p>
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<p class="tent">5</p>
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<p class="tent">5</p>
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<p class="tent">Historical</p>
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<p class="tent">&nbsp;</p>
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<p class="tent">7;5;9</p>
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<p class="tent">5</p>
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<p class="tent">9</p>
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<p class="tent">Historical</p>
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<td align="left">
<p class="tent">&nbsp;</p>
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<p class="tent">7;5,9</p>
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<p class="tent">5</p>
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<p class="tent">9</p>
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<p class="tent">Historical</p>
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<p class="tent">&nbsp;</p>
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<p class="tent">7;$;4</p>
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<p class="tent">$</p>
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<p class="tent">4</p>
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<p class="tent">Historical</p>
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<p class="tent">Valid, but erroneous.</p>
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<p class="tent">7;9</p>
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<p class="tent">7</p>
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<p class="tent">9</p>
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<p class="tent">Historical</p>
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<p class="tent">&nbsp;</p>
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<p class="tent">7;+</p>
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<p class="tent">7</p>
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<p class="tent">8</p>
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<p class="tent">Historical</p>
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<p class="tent">&nbsp;</p>
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<p class="tent">;</p>
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<p class="tent">.</p>
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<p class="tent">Historical</p>
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<p class="tent">&nbsp;</p>
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<p class="tent">;7</p>
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<p class="tent">.</p>
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<p class="tent">7</p>
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<p class="tent">;;</p>
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<p class="tent">$</p>
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<p class="tent">&nbsp;</p>
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<p class="tent">;,</p>
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<p class="tent">$</p>
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<p class="tent">$</p>
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<p class="tent">Extension</p>
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<p class="tent">&nbsp;</p>
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</center>

<p>Historically, values could be added to addresses by including them after one or more &lt;blank&gt;s; for example,
<tt>"3&nbsp;-&nbsp;5p"</tt> wrote the seventh line of the file, and <tt>"/foo/&nbsp;5"</tt> was the same as <tt>"5&nbsp;/foo/"</tt>
. However, only absolute values could be added; for example, <tt>"5&nbsp;/foo/"</tt> was an error. IEEE&nbsp;Std&nbsp;1003.1-2001
requires conformance to historical practice.</p>

<p>Historically, <i>ed</i> accepted the <tt>'^'</tt> character as an address, in which case it was identical to the hyphen
character. IEEE&nbsp;Std&nbsp;1003.1-2001 does not require or prohibit this behavior.</p>
</blockquote>

<h4><a name="tag_04_42_19"></a>FUTURE DIRECTIONS</h4>

<blockquote>
<p>None.</p>
</blockquote>

<h4><a name="tag_04_42_20"></a>SEE ALSO</h4>

<blockquote>
<p><a href="xcu_chap01.html#tag_01_11"><i>Utility Description Defaults</i></a> , <a href="ex.html"><i>ex</i></a> , <a href=
"sed.html"><i>sed</i></a> , <a href="sh.html"><i>sh</i></a> , <a href="vi.html"><i>vi</i></a></p>
</blockquote>

<h4><a name="tag_04_42_21"></a>CHANGE HISTORY</h4>

<blockquote>
<p>First released in Issue 2.</p>
</blockquote>

<h4><a name="tag_04_42_22"></a>Issue 5</h4>

<blockquote>
<p>In the OPTIONS section, the meaning of <b>-s</b> and <b>-</b> is clarified.</p>

<p>A second FUTURE DIRECTION is added.</p>
</blockquote>

<h4><a name="tag_04_42_23"></a>Issue 6</h4>

<blockquote>
<p>The obsolescent single-minus form is removed.</p>

<p>A second APPLICATION USAGE note is added.</p>

<p>The Open Group Corrigendum U025/2 is applied, correcting the description of the Edit section.</p>

<p>The <i>ed</i> utility is updated to align with the IEEE&nbsp;P1003.2b draft standard. This includes addition of the treatment of
the SIGQUIT signal, changes to <i>ed</i> addressing, and changes to processing when end-of-file is detected and when terminal
disconnect is detected.</p>

<p>The normative text is reworded to avoid use of the term &quot;must&quot; for application requirements.</p>

<p>IEEE&nbsp;Std 1003.1-2001/Cor&nbsp;1-2002, item XCU/TC1/D6/22 is applied, adding the text: &quot;Any line modified by the <i>command
list</i> shall be unmarked.&quot; to the <b>G</b> command. This change corresponds to a similar change made to the <b>g</b> command in
the first version of IEEE&nbsp;Std&nbsp;1003.1-2001.</p>
</blockquote>

<div class="box"><em>End of informative text.</em></div>

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