Ruby 1.9.3

I want to practice one-liner programs which are the programs written and
executed in command lines interactively.
I have no experience in Perl, so I need to do this with Ruby (or
shell-script).

Say, I have a Ruby script

  eliminate_duplication.rb

which takes one file input like

  eliminate_duplication.rb file_A.csv

Also I have the whole set of files named

  file_A.csv file_B.csv file_C.csv ...(up to Z)

Could anyone show me examples of one-liner program which apply the
script "eliminate_duplication.rb" to every file in that directory?

Thanks

soichi

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