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Re^3: Perl Modules

by thanos1983 (Parson)
on Jun 20, 2017 at 20:49 UTC ( #1193180=note: print w/replies, xml ) Need Help??

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  1. or download this
    Package names are sometimes an exception to this rule. Perl informally
    + reserves lowercase module names for ``pragma'' modules like integer 
    +and strict. Other modules should begin with a capital letter and use 
    +mixed case, but probably without underscores due to limitations in pr
    +imitive file systems' representations of module names as files that m
    +ust fit into a few sparse bytes.
    
  2. or download this
    Undefined subroutine &pm::security::banned called at pm/user.pm line 1
    +36
    
  3. or download this
    Do not export anything else by default without a good reason!
    
    Exports pollute the namespace of the module user. If you must export t
    +ry to use @EXPORT_OK in preference to @EXPORT and avoid short or comm
    +on symbol names to reduce the risk of name clashes.
    
  4. or download this
    If it returns a true value, then no objects of that class will be clon
    +ed; or rather, they will be copied as unblessed, undef values.
    
  5. or download this
    package Pm::Security;
    
    ...
    }
    
    1;
    
  6. or download this
    #!usr/bin/perl
    use say;
    ...
    
    $ perl main.pl
    Second~First
    
  7. or download this
    $ perl main.pl
    Can't locate Pm/Security.pm in @INC (you may need to install the Pm::S
    +ecurity module) (@INC contains: /home/tinyos/perl5/lib/perl5/5.24.1/x
    +86_64-linux-gnu-thread-multi /home/tinyos/perl5/lib/perl5/5.24.1 /hom
    +e/tinyos/perl5/lib/perl5/x86_64-linux-gnu-thread-multi /home/tinyos/p
    +erl5/lib/perl5 /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.24.1 
    +/usr/local/share/perl/5.24.1 /usr/lib/x86_64-linux-gnu/perl5/5.24 /us
    +r/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.24 /usr/share/perl/5.2
    +4 /usr/local/lib/site_perl /usr/lib/x86_64-linux-gnu/perl-base) at ma
    +in.pl line 7.
    BEGIN failed--compilation aborted at main.pl line 7.
    
  8. or download this
    LinuxThreads is now obsolete on Linux, and caching getpid() like this 
    +made embedding perl unnecessarily complex (since you'd have to manual
    +ly update the value of $$), so now $$ and getppid() will always retur
    +n the same values as the underlying C library.
    

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