DEBUGGING

If you are running the script from the command line or in the perl debugger, you can pass the script a list of keywords 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

or even as newline-delimited parameters 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 parameter=value pairs: 

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