Perl Docs

perldoc
To read perldoc pages about a perl command, enter the command in the input field. For example if you enter perl you can read 'perldoc perl'. Note: or if you enter a module name like CGI::Carp you can read docs about the module.words are case sensitive. The word 'cgi' is not the same as 'CGI' (man pages about CGI.pm module).

Some switches are useful:
-f followed by a function defines the function - Example: -f localtime
-q followed by quoted string will try to find that in perlfaq - Example: -q "what modules"
-h for help on other perldoc switches.