Basic Perl Scripting
Exercise 4
To be handed in: Monday 15th of October


This exercise is about processing a text file. The goal is to change
every second word (separated with whitespace) to small letters, and
the remaining ones to capital ones. Use perl commands lc (lower case)
and uc (upper case).

Example:

"Anna likes writing Perl scripts" chould be changed to "ANNA likes
WRITING perl SCRIPTS".

Exercise: 

Take a small text file (several lines) and write a script that changes
alternating words to lower case and upper case as in the example
above. Hand in your text file, the script and the resulting output.