table of contents
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
2013-02-26 | perl v5.16.3 |