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PO
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Id
2076026
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0
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CreationDate
2010-01-16T02:56:22.670
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2010-01-16T02:56:22.670
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0
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41747
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2075651
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2
Score
9
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text
Body
A few warnings and additions to what everyone else has already said: <ol> <li>The <code>-r</code> option is a GNU extension to enable extended regular expressions. BSD derived sed's use <code>-E</code> instead.</li> <li><a href="http://www.opengroup.org/onlinepubs/000095399/utilities/sed.html#tag_04_126_13_02" rel="noreferrer">Sed</a> and <a href="http://www.opengroup.org/onlinepubs/000095399/utilities/grep.html" rel="noreferrer">Grep</a> use <a href="http://www.opengroup.org/onlinepubs/000095399/basedefs/xbd_chap09.html#tag_09_03" rel="noreferrer">Basic Regular Expressions</a></li> <li><a href="http://www.opengroup.org/onlinepubs/000095399/utilities/awk.html#tag_04_06_13_04" rel="noreferrer">Awk</a> uses <a href="http://www.opengroup.org/onlinepubs/000095399/basedefs/xbd_chap09.html#tag_09_04" rel="noreferrer">Extended Regular Expressions</a></li> <li>You should become comfortable with the <a href="http://www.opengroup.org/pubs/catalog/un.htm" rel="noreferrer">POSIX specifications</a> such as <a href="http://www.opengroup.org/onlinepubs/009695399/toc.htm" rel="noreferrer">IEEE Std 1003.1</a> if you want to write portable scripts, makefiles, etc.</li> </ol> I would recommend rewriting the expression as <pre><code>'s/\([a-zA-Z0-9.]\{1,\}\) [0-9] \(.*\)/\2 (\1)/g' </code></pre> which should do exactly what you want in any POSIX compliant <code>sed</code>. If you do indeed care about such things, consider defining the <a href="http://www.wlug.org.nz/POSIXLY_CORRECT" rel="noreferrer"><code>POSIXLY_CORRECT</code></a> environment variable.
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1. POEscaping sed strings correctly
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1. USD.Shawley
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