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ops

Perl 5 version 18.2 documentation
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ops

NAME

ops - Perl pragma to restrict unsafe operations when compiling

SYNOPSIS

  1. perl -Mops=:default ... # only allow reasonably safe operations
  2. 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