Perl

Using Modules

• perldoc perllocal = shows what modules are installed on a given system
• get cpan if necessary and install (may also need Test::Simple and Digest::SHA to aid in downloading and checking of modules.
• sudo cpan -i Foo::Bar (get name of Foo::Bar from cpan.org)
• perldoc Foo::Bar = see user contributed perl documentation (man pages) of the module you just downloaded

Executables

• cpan
• perldoc = Look up Perl documentation in Pod format.
  • -f perlfunc = look up specific builtin functions, ex: perldoc -f sprintf

Running Perl "perlrun"

• perl -V = Summary of perl5 configuration.
• perl -d and -D = debug options

Syntax

• indicate end of program using the "__END__" token
• specify certain version of perl by statement "use 5.005_54;" or similar