Edit D:\app\Administrator\product\11.2.0\dbhome_1\perl\html\lib\ops.html
<?xml version="1.0" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>ops - Perl pragma to restrict unsafe operations when compiling</title> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <link rev="made" href="mailto:" /> </head> <body style="background-color: white"> <table border="0" width="100%" cellspacing="0" cellpadding="3"> <tr><td class="block" style="background-color: #cccccc" valign="middle"> <big><strong><span class="block"> ops - Perl pragma to restrict unsafe operations when compiling</span></strong></big> </td></tr> </table> <!-- INDEX BEGIN --> <div name="index"> <p><a name="__index__"></a></p> <ul> <li><a href="#name">NAME</a></li> <li><a href="#synopsis">SYNOPSIS</a></li> <li><a href="#description">DESCRIPTION</a></li> <li><a href="#see_also">SEE ALSO</a></li> </ul> <hr name="index" /> </div> <!-- INDEX END --> <p> </p> <h1><a name="name">NAME</a></h1> <p>ops - Perl pragma to restrict unsafe operations when compiling</p> <p> </p> <hr /> <h1><a name="synopsis">SYNOPSIS</a></h1> <pre> perl -Mops=:default ... # only allow reasonably safe operations</pre> <pre> perl -M-ops=system ... # disable the 'system' opcode</pre> <p> </p> <hr /> <h1><a name="description">DESCRIPTION</a></h1> <p>Since the <code>ops</code> pragma currently has an irreversible global effect, it is only of significant practical use with the <a href="file://C|\ADE\aime_smenon_perl_090715\perl\html/pod/perlguts.html#m"><code>-M</code></a> option on the command line.</p> <p>See the <a href="file://C|\ADE\aime_smenon_perl_090715\perl\html/lib/Opcode.html">the Opcode manpage</a> module for information about opcodes, optags, opmasks and important information about safety.</p> <p> </p> <hr /> <h1><a name="see_also">SEE ALSO</a></h1> <p><a href="file://C|\ADE\aime_smenon_perl_090715\perl\html/lib/Opcode.html">the Opcode manpage</a>, <a href="file://C|\ADE\aime_smenon_perl_090715\perl\html/lib/Safe.html">the Safe manpage</a>, <a href="file://C|\ADE\aime_smenon_perl_090715\perl\html/pod/perlrun.html">the perlrun manpage</a></p> <table border="0" width="100%" cellspacing="0" cellpadding="3"> <tr><td class="block" style="background-color: #cccccc" valign="middle"> <big><strong><span class="block"> ops - Perl pragma to restrict unsafe operations when compiling</span></strong></big> </td></tr> </table> </body> </html>
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