ops(3pm) Perl Programmers Reference Guide ops(3pm) NAME ops - Perl pragma to restrict unsafe operations when compiling SYNOPSIS perl -Mops=:default ... # only allow reasonably safe operations perl -M-ops=system ... # disable the 'system' opcode DESCRIPTION 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. SEE ALSO Opcode, Safe, perlrun perl v5.16.3 2013-02-26 ops(3pm)
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