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In addition to BBEdit (which available in a pay version and a time-limited 'demo' version), Mac OS X also comes with Emacs and vi.<P>
Both Emacs and vi run in Terminal. They are completely text based and don't have a graphical interface (well, they can, but we're not gonna talk about installing X and Fink). There are GUI based editors that are free (like <a href="http://www.jedit.org">JEdit</a>).<P>
You can read an Emacs tutorial <a href="http://www.lib.uchicago.edu/keith/tcl-course/emacs-tutorial.html">here</a>.
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Vi tutorial available <a href="http://www.eng.hawaii.edu/Tutor/vi.html">here</a>.
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You'll need to enter the examples in a text editor and then save it (perhaps as 'hello.pl'.
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After saving the example, you run it by typing 'perl hello.pl'.<P>
Welcome to Perl! Perlmonks is here to help, but please read documentation before asking a question. If you don't like reading docs in a Terminal, try <a href="http://www.perldoc.com">perldoc.com</a>.
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