home | O'Reilly's CD bookshelfs | FreeBSD | Linux | Cisco | Cisco Exam  

8.118 ops

Pragma that disables unsafe opcodes during compilation. Can also be used to specify opcodes to be disabled. Generally used with the -M option on the command line:

perl -Mops=:default ...    # only allow reasonably safe operations
perl -M-ops=system ...     # disable system opcode
See the Opcode module for more information.