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ops(3perl)             Perl Programmers Reference Guide             ops(3perl)

       ops - Perl pragma to restrict unsafe operations when compiling

         perl -Mops=:default ...    # only allow reasonably safe operations

         perl -M-ops=system ...     # disable the 'system' opcode

       Since the "ops" pragma currently has an irreversible global effect, it
       is only of significant practical use with the "-M" option on the
       command line.

       See the Opcode module for information about opcodes, optags, opmasks
       and important information about safety.

       Opcode, Safe, perlrun

perl v5.20.2                      2014-12-27                        ops(3perl)

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