Well, a quick typing of perldoc CGI reveals a pretty direct answer without waiting for a fellow monk to go fetch the book and read it to you... 
DEBUGGING
       If you are running the script from the command line or in
       the perl debugger, you can pass the script a list of key-
       words or parameter=value pairs on the command line or from
       standard input (you don't have to worry about tricking
       your script into reading from environment variables).  You
       can pass keywords like this:

           your_script.pl keyword1 keyword2 keyword3

       or this:

          your_script.pl keyword1+keyword2+keyword3

       or this:

           your_script.pl name1=value1 name2=value2

       or this:

           your_script.pl name1=value1&name2=value2

       To turn off this feature, use the -no_debug pragma.

       To test the POST method, you may enable full debugging
       with the -debug pragma.  This will allow you to feed new-
       line-delimited name=value pairs to the script on standard
       input.

       When debugging, you can use quotes and backslashes to
       escape characters in the familiar shell manner, letting
       you place spaces and other funny characters in your param-
       eter=value pairs:

          your_script.pl "name1='I am a long value'" "name2=two\ words
+"

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In reply to Re: How do I enter parameters from the Command Line? by merlyn
in thread How do I enter parameters from the Command Line? by sinan

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