1ops(3pm) Perl Programmers Reference Guide ops(3pm)
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6 ops - Perl pragma to restrict unsafe operations when compiling
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9 perl -Mops=:default ... # only allow reasonably safe operations
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11 perl -M-ops=system ... # disable the 'system' opcode
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14 Since the "ops" pragma currently has an irreversible global effect, it
15 is only of significant practical use with the "-M" option on the
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18 See the Opcode module for information about opcodes, optags, opmasks
19 and important information about safety.
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22 Opcode, Safe, perlrun
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26perl v5.12.4 2011-06-01 ops(3pm)