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Pragmas

Perl pragma to restrict unsafe operations when compiling

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NAME

ops - Perl pragma to restrict unsafe operations when compiling

SYNOPSIS

  1.   perl -Mops=:default ... # only allow reasonably safe operations
    2.  
  2.  
  3.   perl -M-ops=system ... # disable the 'system' opcode
    4.

DESCRIPTION

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

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

SEE ALSO

Opcode, Safe, perlrun

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