Ola lista, para quem me pediu segue a tabela com o modelo POSIX e REGEXP.<br>Isso nos ajuda na hora com AWK e SED.<br><br>
<p class="mr-label-western"><b>Tabela 6.7.2:</b><span style="">
Codificação POSIX e REGEXP.</span></p>
<table style="page-break-before: auto; page-break-after: auto; page-break-inside: auto;" border="1" cellpadding="4" cellspacing="0" frame="below" rules="rows" width="100%">
<col width="53*">
<col width="53*">
<col width="151*">
<thead>
<tr valign="top">
<td bgcolor="#cccccc" width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify"><font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2"><b>GNU
POSIX</b></font></font></p>
</td>
<td bgcolor="#cccccc" width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify"><font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2"><b>REGEXP</b></font></font></p>
</td>
<td bgcolor="#cccccc" width="59%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify"><font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2"><b>Descrição</b></font></font></p>
</td>
</tr>
</thead>
<tbody>
<tr valign="top">
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[[:alnum:]]</font></font></p>
</td>
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[A-Za-z0-9]</font></font></p>
</td>
<td width="59%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">Caracteres
alfanuméricos.</font></font></p>
</td>
</tr>
<tr valign="top">
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[[:alpha:]]
</font></font>
</p>
</td>
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[A-Za-z]</font></font></p>
</td>
<td width="59%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">Caracteres
alfabéticos.</font></font></p>
</td>
</tr>
<tr valign="top">
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[[:blank:]]</font></font></p>
</td>
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[
\x09]</font></font></p>
</td>
<td width="59%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">Apenas
caracteres de espaçamento e tabulação.</font></font></p>
</td>
</tr>
<tr valign="top">
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[[:cntrl:]]
</font></font>
</p>
</td>
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[\x00-\x19\x7F]</font></font></p>
</td>
<td width="59%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">Caracteres
de controle.</font></font></p>
</td>
</tr>
<tr valign="top">
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[[:digit:]]
</font></font>
</p>
</td>
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[0-9]</font></font></p>
</td>
<td width="59%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">Caracteres
numéricos.</font></font></p>
</td>
</tr>
<tr valign="top">
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[[:graph:]]</font></font></p>
</td>
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[!-~]</font></font></p>
</td>
<td width="59%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">Caracteres
visíveis e imprimíveis.</font></font></p>
</td>
</tr>
<tr valign="top">
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[[:lower:]]</font></font></p>
</td>
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[a-z]</font></font></p>
</td>
<td width="59%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">Caracteres
alfabéticos em caixa baixa (minúsculas).</font></font></p>
</td>
</tr>
<tr valign="top">
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[[:print:]]</font></font></p>
</td>
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[-~]</font></font></p>
</td>
<td width="59%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">Caracteres
(não de controle) imprimíveis.</font></font></p>
</td>
</tr>
<tr valign="top">
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[[:punct:]]</font></font></p>
</td>
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[!-/:-@[-`{-~]</font></font></p>
</td>
<td width="59%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">Caracteres
de pontuação.</font></font></p>
</td>
</tr>
<tr valign="top">
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[[:space:]]</font></font></p>
</td>
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[
\t\v\f]</font></font></p>
</td>
<td width="59%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">Todos
os caracteres de espaçamento embranco.</font></font></p>
</td>
</tr>
<tr valign="top">
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[[:upper:]]</font></font></p>
</td>
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[A-Z]</font></font></p>
</td>
<td width="59%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">Caracteres
alfabéticos em caixa alta (maiúsculas).</font></font></p>
</td>
</tr>
<tr valign="top">
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[[:xdigit:]]</font></font></p>
</td>
<td width="21%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">[0-9a-fA-F]</font></font></p>
</td>
<td width="59%">
<p style="background: transparent none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" align="justify">
<font face="Verdana, sans-serif"><font style="font-size: 9pt;" size="2">Caracteres
alfanuméricos hexadecimal (0000-FFFF).</font></font></p>
</td>
</tr>
</tbody>
</table>
<p style="margin-left: 2cm; margin-bottom: 0.2cm; page-break-before: auto;" align="justify">
<br><br></p>
<br><br><br clear="all"><br>-- <br>Atenciosamente,<br><br><br> ( O O )<br> ====oOO==(_)==OOo=====<br><br><br>----------------------------------------------------<br>Adilson Bonanovisky<br><a href="mailto:arbonan@gmail.com">arbonan@gmail.com</a><br>
<a href="mailto:arbonan.linux@gmail.com">arbonan.linux@gmail.com</a>