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You have two lists you need to know what is in list two, that is not in list one:
missing file1.list file2.list
Two Lists
MacBook-Air:codewar dusty$ cat one
one
two
three
four
six
MacBook-Air:codewar dusty$ cat two
one
two
three
four
five
What is in list two, but not in list one:
MacBook-Air:codewar dusty$ missing one two
five
function missing() { cat $1 <(cat $1 $2 ) <(cat $2 $1 | sort | uniq -c | tr -d ' ' | grep '^1' | sed 's/1//') | sort | uniq -c | tr -d ' ' | grep '^2' | sed 's/2//'; }# TODO: replace with your own tests (TDD). An example to get you started is included below.
# run the solution and store its result
# output = run_shell args: ['my_arg']
# describe "Solution" do
# it "should return the argument passed in" do
# expect(output).to include('my_arg')
# end
# end